Rain Bringing Forth the Hundred Grains: Guyu, Civilization's Spring Rain, and the Legend of Cangjie

This article was translated from the original Chinese by AI. Nuances may differ from the source.

Introduction: Why Gaze Anew Upon "Guyu" in the Rains of Late Spring$1

Between Heaven and Earth, all things have their season. When we speak of "Guyu" (谷雨, Grain Rain) today, we tend to treat it merely as a square on the calendar—a certain day in a certain month, when the rains grow heavier and spring draws toward its close. Yet such an understanding truly does a disservice to the millennia of labor our ancestors poured into observing the heavens above and scrutinizing the earth below. Guyu is by no means a simple point in time. It is the crystallization of the ancients' profound apprehension of the workings of the Heavenly Dao; it is the solemn testimony of Heaven and Earth nourishing "grain" (谷) through "rain" (雨), covering and rearing the ten thousand things with a wordless benevolence; and it is, still more, proof of that ancient and subtle bond between humanity and nature.

Why revisit Guyu through the lens of the pre-Qin and high-antiquity worldview$2 Because that was the age in which this solar term was born—the age before its meaning had been buried beneath layer upon layer of later commentary and custom. In that age, a solar term was not knowledge but survival; not a concept but a faith; not a cultural symbol but a real and solemn intercourse between Heaven and humanity. A spell of Guyu rain, to people today, may mean no more than remembering to carry an umbrella out the door; to the ancients, it was "Heaven's grace," bound up with a whole year's livelihood and the very survival of the clan.

The Canon of Yao in the Book of Documents (Shangshu) records: "Then he commanded Xi and He, in reverent accordance with vast Heaven, to calculate and delineate the sun, moon, and stars, and respectfully to bestow the seasons upon the people." These few words say everything about why the solar terms came to be—"respectfully to bestow the seasons upon the people." The word "reverent" and the word "bestow" raise the observation of the heavens to something nearly religious in stature. One watched the sky not to satisfy curiosity but out of reverence—awe before the Way of Heaven; one bestowed the seasons not merely for convenience of living but to convey Heaven's will down into the human world.

And among all the solar terms, Guyu may be the one that most fully embodies these words "respectfully bestowing the seasons upon the people"—for its very name speaks directly of farm work: grain is about to be sown; rain is about to come. Miss the rain of Guyu, and one misses an entire year's grain.

What deep cosmology lies within this$3 Why would the ancients bind together the two characters "rain" and "grain" to coin a name like "Guyu"$4 Why not "spring rain," "late rain," or "blossom rain," but precisely "Guyu"—a name that welds the water above the sky directly to the grain upon the earth$5

This very question touches the core of pre-Qin thought: in the eyes of the ancients, Heaven was not some lofty firmament remote from human affairs—Heaven was something that "rained down grain." It sent down rain; rain became the five grains; the five grains sustained the multitude. Between Heaven and humanity ran an unbroken chain of grace, threaded through by "rain."

The Tuan commentary to the hexagram Qian in the Book of Changes (Zhouyi) says: "Clouds move and rain is bestowed, and the categories of things flow into form." Clouds move across the heavens; rain is bestowed generously upon the earth below; and so the ten thousand things each flow forth and take their shape. Guyu is precisely the fullest, most direct embodiment within the year of these eight characters, "clouds move and rain is bestowed, and the categories of things flow into form." It stands in late spring, the last solar term of spring; one step further brings Start of Summer (Lixia), the grand threshold at which the hexagram Qian—pure yang—turns the ten thousand things from "birth" to "growth." Guyu is thus a place of liminality: it is spring's end and the eve of summer's beginning; it is the juncture where the yang qi is about to fill yet has not fully filled, where the five grains are about to sprout yet have not quite sprouted.

This article proceeds from the core thought of pre-Qin Confucianism and Daoism, and reaches further back into more ancient myth and folk tradition, to offer as deep a reading as possible of the solar term "Guyu." We wish not merely to know what Guyu is, but to ask why it is so; not merely to learn what the ancients did at Guyu, but to understand why they did it.

We shall gaze upon the original meanings of the two characters "grain" and "rain," and ask after the humane grace of Heaven and Earth behind "rain giving birth to the hundred grains"; we shall enter the cosmic picture of the third month of spring in the "Monthly Ordinances" (Yueling) of the Book of Rites (Liji), and inquire into the firm-yet-yielding way of hexagram Guai's "resolving away the last remnant of yin"; above all, we shall pause before a strange and singular legend—that when Cangjie invented writing, "Heaven rained down millet, and ghosts wept in the night"—to explore why later ages bound the very origin of writing to this particular rain of Guyu, and to touch that almost mystical resonance between "raining millet" and "civilization."

In the course of these layered inquiries, perhaps we may once again touch that ancient world in which all things possessed spirit, Heaven and humanity moved each other, and even a single rain was laden with profound meaning.

Chapter 1: The Original Meanings of "Grain" and "Rain" — A Covenant Between Heaven and Earth in Two Characters

Section 1: Why Are the Two Characters "Grain" and "Rain" Joined Together$6

Before entering into the specific discussion of Guyu, we must first gaze at the name "Guyu" itself. The twenty-four solar terms are named according to various principles: some take their name from an astronomical extreme (Summer Solstice, Winter Solstice), some from the start of a season (Start of Spring, Start of Summer), some from a phenological state (Awakening of Insects, Frost's Descent), some from the waxing and waning of qi (Grain Full, Great Heat). "Guyu," however, is one of the few solar terms that places a "natural phenomenon" and an "agricultural outcome" directly side by side within a single name—it does not merely describe the weather (rain), but points to the very "purpose" and "result" of this rain (giving birth to grain).

The Qunfangpu (a Ming-dynasty compendium on botany and horticulture) explains it thus: "Guyu—the grain obtains rain and is born." These few characters state the original meaning of Guyu as clearly as could be: the grain receives the moistening of rain, and thereby grows. "The grain obtains rain and is born"—the subject is "grain," the pivot is "obtaining rain," and the destination is "being born." In other words, the name Guyu speaks of a transaction of "giving" and "receiving" between Heaven and Earth: Heaven gives the rain, Earth receives the rain, and the grain is born through the rain.

An older and more condensed expression is the long-circulating farmers' proverb: "Rain gives birth to the hundred grains" (雨生百谷). These four characters may almost be regarded as the very soul of Guyu. "Rain" is the cause, "gives birth" is the action, and "the hundred grains" is the result. The character "生" (to give birth, to bring forth) elevates rain from a mere physical phenomenon into a creative force—rain does not simply fall and cease; rain is meant to "bring forth" something. And the "hundred" in "hundred grains" does not literally mean one hundred kinds of grain, but rather speaks in the extreme of abundance and completeness—one rain in the sky, and a hundred grains born upon the earth: what generosity, what abundance in this brushstroke of Heaven and Earth!

Why would the ancients name this late-spring solar term in such a way$7 Because through their long observation they discovered that, by this season, the rains begin to grow abundant and timely, and this is precisely the most critical moment for sowing the five grains and coaxing forth new shoots. Too early, and the qi of the earth has not yet warmed, so what is sown will not grow well; too late, and the proper farming season is missed. Only at this moment do the rain and the warmth of the soil align exactly, and it is truly the heaven-sent opportunity of "rain giving birth to the hundred grains." And so the ancients solemnly inscribed this most crucial of rains into the very name of the solar term.

Section 2: The Etymology of "Grain" (穀) — Starting from Food

To truly understand "Guyu," one must first understand the character "grain" (谷/穀). It should be specially noted that the original character for "grain" in the sense of food is "穀," which in ancient script was originally a different character from "谷," meaning a mountain valley or ravine (the two were merged and simplified in later ages). The "grain" of "Guyu" that we speak of here is precisely this "穀"—denoting food grains, cereals.

Shuowen Jiezi (Explaining Simple and Analyzing Compound Characters) glosses the character "穀" thus: "Gu means continuation; it is the collective name for the hundred grains." This gloss by Master Xu Shen is exceedingly profound. "Gu means continuation"—to gloss "穀" as "续" (continuation, succession) is by no means an arbitrary phonetic gloss.

Why is grain called "穀," and why does "穀" resonate with "续" (continuation)$8 Because the five grains are precisely the foundation upon which human life is able to "continue." Without grain, life is cut off; with grain, life continues. One harvest each year, year following year, and the flame of human life endures unbroken, sustained by crop after crop of grain. In glossing "穀" as "续," Master Xu Shen grasped precisely the most fundamental significance of food for humanity—it is the material guarantee of life's continuation.

Moreover, "穀" is "the collective name for the hundred grains"—it does not refer to any single kind of food, but is the general term for all grains: broomcorn millet, foxtail millet, rice, wheat, beans, and the rest. This status as a "collective name" makes "穀" a synonym for "the entire achievement of agrarian civilization." When the ancients spoke of "穀," they spoke not of a single grain of rice or a single kernel of millet, but of the whole foundation on which the entire agrarian world depended for its survival.

From this we can understand why the name "Guyu" carries such weight. Its "grain" is the continuation of life, the foundation of civilization; its "rain" is the heaven-sent grace that brings all of this into being. Joined together, the two characters of "Guyu" speak of how Heaven and Earth, through a single rain, upheld the entire hope of human life's continuation.

Section 3: The Etymology of "Rain" — Water Descending from Heaven and the Virtue of "Moistening Downward"

Now consider the character "rain" (雨). In oracle-bone script, "雨" takes the form of a horizontal line (representing Heaven, or cloud vapor) with several dots hanging beneath it (representing raindrops)—water falling from the sky above is "rain." This is the most intuitive, most ancient pictograph. Shuowen Jiezi says: "Yu is water descending from the clouds. The top stroke represents Heaven, the enclosing frame represents cloud, and water drips down between them." Master Xu Shen dissects the character "雨" with perfect clarity: the horizontal stroke above represents Heaven, the frame in the middle represents cloud, and the drops of water falling between them constitute rain.

In pre-Qin thought, "rain" was by no means merely a meteorological phenomenon—it possessed "virtue" (de). The "Great Plan" chapter of the Book of Documents (Shangshu), discussing the Five Phases, says: "Water is said to moisten downward." The inherent nature of water is to "moisten downward"—to nourish while descending. Rain is precisely the most typical expression of water's virtue of "moistening downward": it descends from high heaven, generously moistens the earth below, then seeps into the soil, nourishing the grasses, trees, and hundred grains.

"Moistening" is nourishment, is giving, is loving-kindness; "downward" is humility, is non-contention, is willing occupation of the lowly place. A single rain displays both of these qualities—"moistening" and "downward"—to the fullest: it bestows its most precious nourishment upon the ten thousand things, yet is willing to descend from the very highest place to the very lowest, seeping into the humblest soil.

Why did the ancients so prize this virtue of "moistening downward" in rain$9 Because in an agrarian civilization, rain was almost synonymous with life and death. The ode "Da Tian" ("The Great Field") in the "Lesser Odes" of the Book of Songs (Shijing) reads: "The clouds gather thick and heavy; the rain comes gently, gently. May it fall first upon our lord's fields, and then extend to our own." (有渰萋萋，兴雨祈祈。雨我公田，遂及我私。)

What genuine sentiment of praying for rain this expresses! When the ancients prayed to Heaven for rain, what they prayed for was precisely this grace of "moistening downward." Timely rain meant a bountiful year; delayed or absent rain meant famine and calamity. And so, in the hearts of the ancients, rain was Heaven's most direct, most generous, and yet most difficult to obtain, gift to humanity.

The rain of Guyu is precisely the grand fulfillment of this virtue of "moistening downward" in late spring. It is not violent like the downpours of high summer, nor is it desolate like autumn rain—it is a "moistening downward" rain that comes exactly at the right measure, coaxing forth the hundred grains, gentle and timely.

Section 4: "At Qingming, Snow Ceases; At Guyu, Frost Ceases" — Astronomy and Phenology in a Farmers' Proverb

In understanding Guyu, there is another widely circulated farmers' proverb that must not be overlooked: "At Qingming, snow ceases; at Guyu, frost ceases" (清明断雪，谷雨断霜).

The literal meaning of this saying is: by Qingming, snow no longer falls; by Guyu, frost no longer forms. Though it appears to be mere empirical wisdom, it in fact contains a profound logic of astronomy and phenology. Frost is the product of low temperature—when the surface temperature drops below freezing at night, water vapor in the air condenses into frost. "At Guyu, frost ceases" means that by the season of Guyu, even at night, the surface temperature has already risen stably above freezing, and frost no longer forms.

What does this mean for farming$10 It means that the threat of cold has essentially been lifted, and tender seedlings and crops may be sown or transplanted with confidence, no longer at risk of being frozen to death by a night's frost. The four characters "at Guyu, frost ceases" amount to a signal sent by Heaven to the farmer: it is now safe to sow, for the last barrier of cold has passed.

Looking still more deeply, the two sayings "at Qingming, snow ceases; at Guyu, frost ceases" together depict a process in which cold qi retreats step by step while warm qi advances step by step. Snow belongs to deep winter; frost is the lingering chill of early spring; and by Guyu, even the last frost has "ceased" (断).

This forms a remarkable resonance with hexagram Guai, which we shall discuss at length later—"five yang lines resolving away one yin line," yang qi advancing step by step while the remnant yin retreats step by step. The "ceasing" (断) of "frost ceases" and the "resolving" (决) of hexagram Guai speak, at bottom, of the very same matter: warmth overcoming cold, yang resolving away yin, spring advancing toward summer. Hidden behind an ordinary farmers' proverb lies the very message of the entire Book of Changes.

Chapter 2: The Astronomical Foundation of Guyu — The Sun Arriving at 30° of Ecliptic Longitude

Section 1: 30° of Ecliptic Longitude — The Astronomical Coordinate of Late Spring

Guyu has a precise astronomical definition: the moment when the sun reaches 30° of ecliptic longitude. To understand this, one must first understand what "ecliptic longitude" is.

The so-called ecliptic is the apparent annual path of the sun across the celestial sphere—that is, viewed from Earth, the great circle that the sun traces against the backdrop of the stars over the course of a year. Dividing this circle into 360 equal degrees, with the vernal equinox point taken as 0° of ecliptic longitude, each 15° that the sun "travels" marks one solar term. Thus: the Spring Equinox is 0°, Qingming is 15°, Guyu is 30°, Start of Summer is 45°, and so on. The twenty-four solar terms divide the ecliptic precisely into twenty-four equal segments of 15° each.

Guyu stands at 30° of ecliptic longitude, meaning that since the Spring Equinox, the sun has already traveled thirty degrees along the ecliptic. This is a position laden with meaning: it is fully two solar terms removed from the equinox point of equal day and night; the sun's subsolar point is steadily moving northward; in the Northern Hemisphere, daylight grows longer with each passing day, the noon sun climbs higher with each passing day, and the earth receives more light and heat with each passing day. This is precisely why the season of Guyu sees the earth's qi turn warm and the frosty cold cease—all of it is the necessary result of the sun's thirty-degree northward journey.

It is worth asking: the ancients had no concept of "ecliptic longitude"—how, then, did they determine Guyu$11 The answer lies in the shadow of the sun. A vertical "gnomon" (biao, a pole) set into the ground, paired with a horizontal "gui" (a measuring scale), together formed China's most ancient astronomical instrument—the gnomon and scale (guibiao). The "Offices of Earth: Office of the Minister of Education" in the Rites of Zhou (Zhouli) records: "By the method of the earth-gui, measure the depth of the earth, rectify the sun's shadow, and thereby seek the center of the earth."

By measuring the length of the gnomon's shadow at the exact moment of noon, the ancients could precisely determine the sun's altitude, and thereby fix the solar term. On the Winter Solstice the noon shadow is longest; on the Summer Solstice it is shortest; and the length of the noon shadow at Guyu falls between that of the Spring Equinox and Start of Summer—shorter than the equinox, longer than Start of Summer. Day after day, year after year, the ancients recorded the lengthening and shortening of that shadow, until at last they precisely marked out this late-spring juncture at which rain moistens and brings forth the hundred grains.

Section 2: The Position of Late Spring — Why Is Guyu the Last Solar Term of Spring$12

Guyu is the last of the six solar terms of spring (Start of Spring, Rain Water, Awakening of Insects, Spring Equinox, Qingming, and Guyu). After it comes Start of Summer. This "final act" position endows Guyu with a special dual identity.

On one hand, it is the grand conclusion of spring. Spring begins with the "sprouting stirrings" of Start of Spring, passes through the "thawing" of Rain Water, the "insects' awakening" of Awakening of Insects, the "equal division" of Spring Equinox, and the "clarity and brightness" of Qingming, arriving at Guyu as spring reaches its deepest point, the blossoms nearing their end, in the very heart of late spring. By this time, the tasks proper to spring—sprouting, sending out branches, blossoming, sowing—have for the most part already been accomplished or are being completed; the qi of spring is nearing its fullness.

On the other hand, it is also the prelude to summer. One more solar term further, and the sun reaches 45° of ecliptic longitude, entering Start of Summer, at which point the ten thousand things turn from spring's "birth" into summer's "growth." Guyu thus stands at the threshold of the meeting of spring and summer—looking back at the whole of spring's cultivation on one side, and looking forward to the grand growth soon to come on the other. It is the pivot linking what came before to what follows, the summation of "birth" and the overture to "growth."

This position of "lateness" carries particular weight within the pre-Qin conception of time. The ancients did not regard the four seasons as four boxes of equal length and equal nature, but rather as a single life process with a beginning, a continuation, a turning, and a culmination. The "lateness" of each season is never a simple ending, but rather a "transition" and a "gestation" toward the next season. Guyu's position as late spring is like dusk's position as the close of day—it is not the extinguishing of light, but the yielding and gestation of light toward another, more blazing light (summer).

Section 3: The Meeting of Spring and Summer — A Philosophy of Liminality and Transition

The four characters "the meeting of spring and summer" (春夏之交) appear plain, yet they are in fact one of the most crucial keys to understanding Guyu.

Why does this "meeting" (交) matter so much$13 Because in pre-Qin thought, the most profound changes tend to occur precisely at points of "meeting"—in the liminal zone where two states touch, alternate, and surge against each other. Among the sixty-four hexagrams of the Book of Changes, what matters most is "timing" (shi) and "position" (wei); and all hexagram transformations and line changes are, in essence, depictions of this "meeting"—the transitional moment of yin and yang's waxing and waning. Guyu, as the meeting of spring and summer, is precisely the liminal point at which the qi of Heaven and Earth transforms from "the virtue of spring" toward "the virtue of summer."

At this liminal point, the qi of Heaven and Earth displays a subtle tension: the lingering charm of spring still remains—duckweed just sprouting, mulberry leaves still tender, the cuckoo urging the plowing—everywhere still the phenology of spring; yet the first stirrings of summer have already begun—the yang qi about to reach its fullness, the earth's qi turning greatly warm, thunder and rain gradually increasing—everywhere already exuding the breath of summer. Spring and summer briefly overlap and transition here at Guyu. This state of "meeting" is neither pure spring nor pure summer, but a transitional condition of "about to change yet not yet changed, about to end yet not yet ended."

The ancients held a particular reverent caution toward this transitional state of "meeting." For it is precisely at the point of "meeting" that things are most subtle and most prone to disorder—the climate is most changeable at this time (hence the saying "in the fourth lunar month, one dresses in confusion" 四月乱穿衣, describing unpredictable weather), and farm work at this time tolerates no error whatsoever.

Thus the teaching of Guyu is, at its root, a "wisdom of the liminal": at the juncture where the old gives way to the new, one must both accord with the imminent new (seizing the rain to sow with urgency, welcoming the coming growth) and properly bring the departing old to a fitting close (letting the frost cease and sending off the cold, concluding the spring plowing). This wisdom—of grasping the proper measure amid transition, of remaining clear-headed at the liminal point—is precisely the deepest astronomical-philosophical legacy that Guyu has bequeathed to later generations.

Section 4: From "the Two Equinoxes and Two Solstices" to "the Twenty-Four Solar Terms" — Guyu's Calendrical Position

To truly understand Guyu's place within the system of solar terms, we must also review how the entire system of solar terms grew step by step more precise, until it finally came to accommodate the solar term "Guyu."

In the most ancient divisions of time, what the ancients first grasped were "the two solstices"—the Summer Solstice and the Winter Solstice. These were the easiest to determine through observation with the gnomon and scale: the shortest noon shadow marks the Summer Solstice, the longest marks the Winter Solstice. The Canon of Yao in the Book of Documents records "the day is long, and the star is Fire Antares—thereby the height of midsummer is rectified" and "the day is short, and the star is the Pleiades—thereby the height of midwinter is rectified," which is precisely the record of the two solstices. Following this came "the two equinoxes"—the Spring Equinox and Autumn Equinox (when day and night are of equal length). "The two equinoxes and two solstices" together form four nodal points, roughly dividing the year into four segments.

However, "the two equinoxes and two solstices" can mark only the "middle" of the four seasons (mid-spring, midsummer, mid-autumn, midwinter), but cannot mark the "beginning" and "end" of the four seasons. And so "the four beginnings" were added—Start of Spring, Start of Summer, Start of Autumn, and Start of Winter, to mark the beginnings of the four seasons. "The two equinoxes and two solstices" plus "the four beginnings" yielded "the eight nodes" (八节), dividing the year into eight segments.

But for the fine calibration of farm work, eight segments still proved too coarse—especially for late spring, this crucial sowing period of "rain giving birth to the hundred grains," which required a still more precise nodal point to mark it out. And so, building upon "the eight nodes," the ancients further subdivided each segment, ultimately forming the twenty-four solar terms—two terms per month, each term spanning roughly fifteen days. Guyu was, precisely through this step-by-step process of refinement, precisely marked into its position after Qingming and before Start of Summer.

This journey from coarseness to precision reveals the fundamental driving force behind the evolution of the solar-term system—the needs of farm work. Why were the ancients not content with "the two equinoxes and two solstices," insisting instead on refining them into twenty-four$14 Precisely because a juncture of farming time as vital to a whole year's livelihood as Guyu had to be precisely marked out, without the slightest room for ambiguity.

That Guyu was able to obtain an independent, precise position within the calendar is itself the ultimate pursuit, by the ancients, of the four characters "respectfully bestowing the seasons upon the people"—they wished to mark out, to within half a month, that rain which "gives birth to the hundred grains," never allowing it to be missed within some vague stretch of time. The history of the refinement of the solar terms is, at its root, a precise science devoted to never missing a rain such as Guyu—a rain upon which survival itself depended.

Chapter 3: The Third Month of Spring in the "Monthly Ordinances" of the Book of Rites — A Complete Cosmic Picture

Section 1: The Nature of the Monthly Ordinances — A Guide to Action Between Heaven and Humanity

Among all pre-Qin texts, the most detailed and systematic description of Guyu and the third month of spring in which it falls belongs to the "Monthly Ordinances" (Yueling) chapter of the Book of Rites (Liji) (its content is highly consistent with the "Record of the Third Month of Spring" chapter of the Lüshi Chunqiu, and most scholars believe the two share a common source). The Monthly Ordinances is not a simple calendrical record but a complete guide to action between Heaven and humanity—it tells us, at a given point in time, what the celestial phenomena are, what the earthly things are, and what human affairs ought to be. One might say the Monthly Ordinances is the most concrete, most systematic operating manual of the pre-Qin cosmology of "the unity of Heaven and humanity."

We must first clarify a correspondence in time: Guyu falls in the third month of the lunar calendar—the "chen month"—which is precisely what the Monthly Ordinances calls "the third month of spring." A year is divided into three stages for each season—the first, middle, and last months—so spring has its first month (the first lunar month), middle month (the second lunar month), and last month (the third lunar month). Guyu and Qingming both fall in the last month of spring, the solar terms of the final month of spring's three months. So to understand Guyu's place within the Monthly Ordinances, one must read the chapter on "the third month of spring."

Section 2: The Celestial Phenomena and Five-Phases Correspondences of the Third Month of Spring

The "Monthly Ordinances" of the Book of Rites opens its account of the third month of spring by sketching a complete picture of the celestial phenomena: "In the third month of spring, the sun is in the lodge Wei; at dusk the Seven Stars culminate; at dawn the Ox-Herder star culminates." The sun travels to the position of the lunar lodge Wei; at dusk, the constellation Seven Stars (one of the seven southern lodges of the Vermilion Bird) sits at the very center of the southern sky; at dawn, the Ox-Herder star sits at the very center of the southern sky. The positions of these stars and lodges were the astronomical basis by which the ancients judged the season.

Immediately following this, the Monthly Ordinances describes the Five-Phases attributes of the third month of spring, constructing an extraordinarily precise system of cosmic correspondences: "Its days are jia and yi; its sovereign is Great Hao; its attendant spirit is Goumang; its creatures are the scaly kind; its note is jue; its number is eight; its flavor is sour; its smell is fetid; its sacrifice is to the household gate, and the spleen is offered first." Let us examine each in turn:

"Its days are jia and yi"—the third month of spring corresponds to jia and yi among the Heavenly Stems. Among the ten Heavenly Stems, jia and yi belong to Wood. Why$15 Because the correspondence between the Stems and the Five Phases runs: jia and yi belong to Wood (spring), bing and ding belong to Fire (summer), wu and ji belong to Earth (late summer), geng and xin belong to Metal (autumn), ren and gui belong to Water (winter). The entirety of spring—first, middle, or last month alike—belongs to Wood, and is matched with jia and yi. This system welds time (the Heavenly Stems) together with material nature (the Five Phases), forming one of the basic frameworks of pre-Qin cosmology.

"Its sovereign is Great Hao"—the ruling sovereign of the third month of spring is Great Hao (also written Taihao or Taihao), that is, the legendary Fu Xi. Why is the sovereign of spring Great Hao$16 This relates to the system matching the Five Phases with the Five Sovereigns: the sovereign of spring is Great Hao (virtue of Wood), the sovereign of summer is the Flame Sovereign (virtue of Fire), the sovereign of the center is the Yellow Sovereign (virtue of Earth), the sovereign of autumn is Shao Hao (virtue of Metal), and the sovereign of winter is Zhuanxu (virtue of Water).

Great Hao Fu Xi is, in high-antiquity legend, the ancestral figure who drew the Eight Trigrams and invented writing and tallies, taking "brightness" (hao carries the meaning of luminosity, radiant whiteness) as his virtue; he governs the east, governs spring, governs Wood—grasses and trees growing toward the sun is precisely the expression of Wood's virtue of "bending and straightening" and its upward, luminous nature.

"Its attendant spirit is Goumang"—the assisting spirit of the third month of spring is Goumang. Goumang is, in high-antiquity legend, the spirit of Wood, the spirit of spring. The "Classic of Regions Beyond the Seas: East" chapter of the Classic of Mountains and Seas (Shanhaijing) records: "Goumang of the east has a bird's body and a human face, and rides upon two dragons." Goumang, in the capacity of Wood spirit, assists Great Hao and governs the east and spring. The very characters of his name, "Goumang," are themselves an image of grasses and trees first sprouting—"gou" means bent, curled, depicting the shape of a tender shoot still curled and not yet unfurled; "mang" means the awn or barb of a plant, its fresh tip. The name Goumang paints precisely the instant a seed breaks the soil, a tender shoot curls forth, and its first sharp tip appears. To take "Goumang" as the spirit of spring could not be more fitting.

"Its creatures are the scaly kind"—the representative category of creatures for the third month of spring is the "scaly creatures" (lin chong), that is, the fish-and-dragon kind, those bearing scales. In the pre-Qin classification of the five kinds of creatures, all things were divided into the scaly kind (corresponding to spring), the feathered kind (corresponding to summer), the naked kind (humanity, corresponding to the center), the furred kind (corresponding to autumn), and the shelled kind (corresponding to winter). One explanation for why the scaly kind is matched with spring is that the dragon is the chief of the scaly creatures, and the dragon governs spring rain, the east, and the virtue of Wood; when spring thunder first stirs and spring rain first arrives, it is exactly the time when "the scaled ones submerge and the feathered ones take flight," when the hibernating dragon ascends to Heaven. Guyu, abundant in rain, and rain being the domain the dragon presides over, makes the scaly creatures' match with spring especially fitting at Guyu.

"Its note is jue"—the musical note of the third month of spring is the note jue. Among the five tones (gong, shang, jue, zhi, yu), the jue note is clear, resonant, and unimpeded, its tonal quality resonating with Wood's nature of growth and unfolding. The ancients believed each season had its own particular "sound"—not that one could only hear the jue note in spring, but that the vibrational frequency of Heaven and Earth's qi in spring resonates with the jue note. What a marvelous and bold imagination this is, linking acoustics with cosmology, holding that there exists between Heaven and Earth a kind of "resonance" that transcends matter.

"Its number is eight"—the numerological correspondence of the third month of spring is eight. In the pre-Qin numerological system, one and six belong to Water, two and seven to Fire, three and eight to Wood, four and nine to Metal, five and ten to Earth. Eight belongs to Wood, and is thus matched with spring. This correspondence of numbers with the Five Phases has an extremely ancient origin, possibly related to the tradition of the Yellow River Chart (Hetu) and the Luo River Writing (Luoshu).

"Its flavor is sour"—the flavor of the third month of spring is sour. The correspondence of the five flavors (sour, bitter, sweet, pungent, salty) with the Five Phases runs: sour belongs to Wood (spring), bitter to Fire (summer), sweet to Earth (late summer), pungent to Metal (autumn), salty to Water (winter). Why does sourness belong to Wood$17 One explanation holds that Wood's nature is to bend and straighten, to contract even as it grows forth, and sourness likewise carries a contracting quality; moreover, the fruits of newly sprouted plants are often sour (such as green plums and green apricots), and late spring is precisely the season of sour, unripe green fruit. In the perception of the ancients, taste was not merely a sensation of the tongue but a manifestation of the qi of Heaven and Earth.

"Its smell is fetid"—the smell of the third month of spring is fetid (shan, a rank, goat-like odor). The correspondence of the five smells (rank, scorched, fragrant, fishy, putrid) with the Five Phases matches rank with Wood and with spring. The rank smell is the raw scent of grasses and trees, and also the scent of goats, resonating with growing, sprouting Wood.

"Its sacrifice is to the household gate"—the object of sacrifice in the third month of spring is the spirit of "the household gate" (hu). The five sacrifices (household gate, hearth, central roof-beam, outer gate, roadway) are matched with the Five Phases, and the household gate is matched with spring. Why does spring sacrifice to the household gate$18 The household gate is the portal of entry and exit; in spring, the ten thousand things stir and sprout, and the vital qi issues outward, just as a person exits through the household gate; matching the household gate with spring takes its meaning of "opening, going forth, and sprouting."

"The spleen is offered first"—the organ first offered in sacrifice is the spleen. The five viscera are matched with the Five Phases, and here the Monthly Ordinances matches the spleen with spring (differing from the later medical tradition's matching of the liver with Wood, reflecting differences in Five-Phases correspondences across pre-Qin schools). But whatever the specific correspondence, the underlying logic is consistent: each organ of the body corresponds to some layer of the cosmos, and offering a particular organ in sacrifice expresses the resonance between the human body and Heaven and Earth.

Section 3: Why Did the Monthly Ordinances Construct Such a Precise System of Correspondence$19

Reflecting on the analysis above, we cannot help but ask: why did the Monthly Ordinances devote such extensive space to matching, one by one, the day, the sovereign, the spirit, the creature, the note, the number, the flavor, the smell, the sacrifice, and the organ$20 Would it not have sufficed simply to know "it is now late spring, and time to sow"$21

The answer lies here: for the ancients, merely knowing "late spring has arrived" was far from sufficient. What they needed to know was—behind this season in which rain gives birth to the hundred grains, in what manner does the entire cosmos operate$22 The stars and lodges above, the grasses and trees below, the human body's spleen, the sour taste on the tongue, the jue note in the ear—how are all these things threaded through and linked together by one and the same qi of "the virtue of Wood"$23

This impulse to seek a single thread running through all things is one of the most salient features of pre-Qin thought. The Master said: "My Way is bound together by a single thread" (吾道一以贯之) (Analects, "Li Ren"). This "single thread" is not merely an ethical principle but a cosmological conviction—though the ten thousand things of Heaven and Earth are utterly various, behind them a unified law is at work. The system of cosmic correspondence constructed by the Monthly Ordinances is precisely the concrete realization of this conviction.

It tells people: every seed you sow, every trace of sourness your tongue tastes, every sound of jue your ear hears, and even the spleen silently transforming things within your body—all are intimately connected to the position of the sun and the direction of the stars high above. You are not isolated; you are a single node upon this vast "web of the virtue of Wood."

Section 4: The Governmental Ordinances of the Third Month of Spring — The Governance of Growth and Nurture, and the Teaching of Guyu

The Monthly Ordinances lays out detailed prescriptions for the governmental ordinances of the third month of spring, whose core spirit may be summarized in four characters: growth, nurture, no killing. This is precisely the unfolding, on the political level, of the teaching of Guyu.

The "Monthly Ordinances" of the Book of Rites records the governance of the third month of spring: "In this month, order is given to the wardens of the wilds that they cut down no mulberry or cudrania trees. The cuckoo flaps its wings; the hoopoe descends upon the mulberry trees. The curved frames, upright posts, round baskets, and square hampers for silkworm-rearing are prepared; the queen consort fasts and purifies herself, and faces east to gather mulberry leaves with her own hands. The women's other labors are curtailed, and their service is reduced, in order to encourage the work of silk-rearing." This month, the officials in charge of the mountains and forests are ordered not to fell mulberry or cudrania trees. The cuckoo flaps its wings; the hoopoe alights on the mulberry trees. The tools for silkworm-raising (frames, posts, baskets, hampers) are made ready; the queen consort personally fasts, and faces east to pick mulberry leaves with her own hands. Women's other labors are reduced, so that all may devote themselves to encouraging the work of sericulture.

This passage of governmental ordinances corresponds, almost sentence by sentence, directly to the phenology and farm work of Guyu: "the cuckoo flaps its wings" and "the hoopoe descends upon the mulberry trees" are precisely the second and third pentads of Guyu's phenology; "cut down no mulberry or cudrania trees," "gather mulberry leaves with her own hands," and "encourage the work of silk-rearing" are the most crucial governance of mulberry and silk at the season of Guyu. What does it mean that the Monthly Ordinances records these as "ordinances" that the Son of Heaven and the queen consort must personally obey$24 It means that, in the eyes of the ancients, according with Guyu and fostering the care of sericulture was not a private matter for farmers, but a great affair of state, participated in jointly from the Son of Heaven and queen consort above down to the myriad people below, bearing upon the harmony of Heaven and humanity.

The Monthly Ordinances further records: "In this month... the qi of growth is just now at its height, the yang qi issues forth and disperses; the curled things all emerge, the sprouting things all extend; nothing should be kept closed within." This month, the qi of growth is just at its height, the yang qi disperses outward; whatever was curled has all come forth; whatever was sprouting has all extended itself; nothing may be kept sealed away within. The eight characters "the curled things all emerge, the sprouting things all extend" (句者毕出，萌者尽达) portray, to the fullest, that surging vitality of late spring in which the ten thousand things vie to break through the soil, none remaining curled or hidden away. This is precisely the total picture of Guyu's "rain giving birth to the hundred grains" across Heaven and Earth—beneath the moistening rain, whatever possesses the will to live surges forth without exception.

Section 5: The Warnings of the Monthly Ordinances — The Consequences of Enacting Untimely Ordinances in the Third Month of Spring

Having described the governance proper to the third month of spring, the Monthly Ordinances also sternly warns of the consequences of enacting "untimely ordinances": "If in the third month of spring the ordinances of winter are enacted, then cold qi will repeatedly arise, the grasses and trees will all wither, and the state will know great dread. If the ordinances of summer are enacted, the people will suffer much pestilence, the timely rains will not fall, and the mountains and forests will yield no harvest. If the ordinances of autumn are enacted, Heaven will be heavy with gloom, excessive rains will fall prematurely, and weapons and warfare will arise on every side."

If, in the third month of spring, the ordinances proper to winter were enacted (such as severe punishment and sealing away), then cold qi would repeatedly arise, the grasses and trees would all wither, and the state would know great dread. If the ordinances proper to summer were enacted (such as forcing premature growth), then pestilence would spread, the timely rain would not fall, and the mountains and forests would yield a poor harvest. If the ordinances proper to autumn were enacted (such as severity and military campaigns), then dark clouds would gather thick, excessive rain would fall prematurely, and weapons of war would rise on every side.

Among these warnings, two bear directly on the rain of Guyu and merit special attention. First: "if the ordinances of summer are enacted... the timely rain will not fall"—if, in late spring, the ordinances of high summer were enacted, the timely rain would not fall. Does this not say precisely that acting contrary to the season brings the cutting-off of Guyu's rain$25 Second: "if the ordinances of autumn are enacted... excessive rains will fall prematurely"—if, in late spring, the severe ordinances of autumn were enacted, excessive rain would fall prematurely. This says, in turn, that acting contrary to the season would turn Guyu's rain into an excessive rain that harms the crops.

These two warnings, one positive and one negative, reveal a deeply held conviction of the ancients: the "timing" and "measure" of rain are intimately bound up with the "governance" of human affairs. When the timely rain that should come fails to come, and the excessive rain that should not come arrives instead, this, in the eyes of the ancients, is no mere accident of weather, but the retribution, manifest in celestial phenomena, for misgovernance in the human world.

The rain of Guyu is precious precisely because it is "timely rain"—rain arriving at exactly the right time, in exactly the right measure. And to preserve this "timely rain," humanity must enact "timely governance"—ordinances that accord with the season of Heaven. Viewed from a modern perspective, this causal logic surely lacks scientific foundation, but its core insight—that governance must adapt to the objective rhythms of the seasons and the growth of the ten thousand things—still glimmers with wisdom today.

Chapter 4: The Confucian Perspective — Rain Giving Birth to the Hundred Grains and the Humaneness of Heaven and Earth

Section 1: Humaneness Like Timely Rain — The Confucian Interpretation of Heaven and Earth's Nurturing

The scene of Guyu's "rain giving birth to the hundred grains," in Confucian eyes, is precisely the most direct and most moving manifestation of "the humaneness (ren) of Heaven and Earth." What is humaneness$26 The Master spoke a thousand words on the subject of humaneness, but at its root it is a compassionate heart of "loving others" and "extending to all things," ceaselessly generative. And does not Heaven and Earth nourishing grain with rain, sustaining life with its grace, represent precisely the ultimate expression of this compassionate heart at the cosmic level$27

Master Meng (Mencius) offers a famous metaphor that directly links "humaneness" with "timely rain." The "Full Exercise of the Mind, Part I" chapter of the Mencius (Mengzi) records: "There are five ways by which the noble person teaches: there is that of transforming others like timely rain; there is that of helping them to perfect their virtue; there is that of helping them to develop their talents; there is that of answering their questions; there is that of those who privately cultivate themselves through his example." The noble person has five ways of transforming others, and the first is "transforming them like timely rain"—nourishing and transforming them the way timely rain does.

What does it mean to "transform like timely rain"$28 Timely rain is rain that arrives exactly at the right season—precisely rain of the kind Guyu brings. It does not clamor, it does not compel; it simply descends quietly at the moment all things most need it, seeping in silently, so that the seedlings, without even realizing it, receive nourishment, sprout, and grow.

That Master Meng compares the most consummate teaching to timely rain means this: true education, true humane virtue, is not indoctrination delivered by wagging a finger, nor stern reproof delivered with a harsh voice, but rather something like Guyu's rain—timely, gentle, silent, transforming a person without their even being aware of it. The one being taught may not even realize they are being "taught"; they simply feel that they have naturally grown and progressed, just as the seedling only feels that it has naturally grown taller, without knowing which rain it was that brought this about.

This raises the rain of Guyu to an exceedingly lofty realm: it is not only agriculture's grace, but also the supreme model of "teaching and transformation" and "humane virtue." Heaven nourishes the hundred grains with timely rain; the sage transforms the myriad people with humane virtue—the two are but the unfolding, on the levels of nature and of humanity respectively, of one and the same "generative humaneness."

Section 2: The Hardship of Farming and the Humaneness of Valuing Agriculture

Confucian humaneness has never been an abstract love, but something grounded in the most concrete matter of "nurturing the people." And the foundation of nurturing the people lies in agriculture, in grain. Guyu, as the crucial solar term that brings forth the hundred grains, naturally becomes the finest footnote to the Confucian thought of "valuing agriculture" and "nurturing the people."

The "Against Luxurious Ease" chapter of the Book of Documents records the Duke of Zhou's admonition to King Cheng, which contains a passage of great weight: "Alas! The noble person, in his position, should not indulge in ease. Let him first know the hardships of sowing and reaping, and only then take his ease; then he will understand what the common people depend upon and toil for." Alas! The noble person, in his position, must not covet ease and comfort. He must first understand the hardship of plowing and harvesting (sowing and reaping), and only then enjoy his ease—only in this way can he grasp what the common people depend upon, and what they toil for.

Why did the Duke of Zhou place "knowing the hardship of sowing and reaping" in such a fundamental position$29 Because, in Confucian thought, only by personally experiencing the hardship of growing grain and the difficulty of harvest can a ruler truly give rise to a heart of compassion for the people—and this is the very root of "humaneness."

And Guyu is precisely one of the most difficult and most crucial times in the whole cycle of sowing and reaping: one must race, after the frost has ceased, to seize the timely rain, sow the seed, and transplant the seedlings—not a moment can be delayed. "Who knows that the food upon the plate—every single grain is won through hardship" ("谁知盘中餐，粒粒皆辛苦," a well-known later couplet)—and this word "hardship" finds its truest expression in the mud, water, and sweat of Guyu's urgent sowing. When Confucianism calls upon the noble person to "first know the hardship of sowing and reaping," it is, in a sense, calling upon him to experience that hardship of racing against Heaven's time, out in the fields at the season of Guyu.

Though the Master once said "I am not as good as an old farmer" and "I am not as good as an old gardener" (Analects, "Zilu"), which on the surface seems to disparage farming, it in fact carries a deeper meaning—he does not disdain farm work, but rather emphasizes that the duty of the noble person lies in ritual propriety, righteousness, and trustworthiness—in creating a well-ordered society where, "if those above love ritual propriety, none among the people will dare be disrespectful," so that farmers may sow and reap with peace of mind. In other words, the noble person's humaneness rests upon safeguarding the farming seasons, not seizing farmers away during the busy season, and employing the people in accordance with the proper time. At the season of Guyu's urgent sowing, nothing is more to be avoided than conscripting labor; safeguarding the farmers' right to sow in peace at the season of Guyu is precisely one of the most concrete contents of Confucian "humane governance."

Section 3: The Governance of Guyu in the Book of Songs — Exhorting and Pitying the Farmer

Confucianism takes the Book of Songs (Shijing) as the foundation of moral instruction, and throughout the Book of Songs one finds, everywhere, a profound concern for farm work, for the grace of rain, and for the people's livelihood—all of which resonate with the teaching of Guyu.

We have already cited above, from "Da Tian" in the "Lesser Odes," "may it fall first upon our lord's fields, and then extend to our own"—this is the joy of a bountiful harvest in prospect, gratitude for the timely rain. And "Qiyue" ("The Seventh Month") in the "Odes of Bin" is an entire "epic of farm work," arranged from the beginning of the year to its end, recording in exhaustive detail the phenology and labor of all four seasons. Amid it, describing late spring: "The spring days grow warm; the oriole sings. The maidens take up their deep baskets, and follow the little paths, seeking the tender mulberry leaves." (春日载阳，有鸣仓庚。女执懿筐，遵彼微行，爰求柔桑。) In the warmth of spring days, the oriole sings sweetly; the girls carry their deep bamboo baskets and, following the small paths, go to gather the tender mulberry leaves.

These four characters, "seeking the tender mulberry leaves" (爰求柔桑), are precisely a true depiction of the work of sericulture at the season of Guyu, echoing from afar the Monthly Ordinances' account of the third month of spring's "gathering mulberry leaves with her own hands" and "encouraging the work of silk-rearing." Confucianism's inclusion of such poems within its canon carries a far-reaching intent: it allows the literate—the noble persons and officials of the future—through the chanting and recitation of poetry, to come to recognize the toil of the farmer (and especially of the mulberry-picking maiden), to understand how hard-won a strand of silk or a grain of rice truly is, and thereby to plant in their hearts the humane seed of "pitying the farmer" and "valuing agriculture." To read "The Seventh Month" and thereby know the hardship of sowing and reaping shares the very same intent as the Duke of Zhou's teaching to "first know the hardship of sowing and reaping."

Section 4: "Employing the People According to the Season" — Political Ethics in Guyu's Urgent Sowing

Within Confucian political ethics, there is one principle bearing an extremely close relation to Guyu—"employing the people according to the season" (使民以时).

The "Xue Er" chapter of the Analects records the Master's words: "In governing a state of a thousand chariots, one should attend reverently to affairs and be trustworthy; be economical in expenditure and cherish the people; and employ the people according to the season." In governing a great state possessing a thousand war chariots, one must handle affairs with caution and speak with trustworthiness, economize expenditure and cherish the people, and employ the common people in labor service only in accordance with the proper farming season.

The four characters "employing the people according to the season" (使民以时) carry immense weight. "Season" here means the farming season. Its core is this: when a ruler conscripts the people's labor (for corvée service or military service), he must avoid the busy farming season, and must never, at the crucial moments of sowing, tilling, and harvesting—upon which an entire year's livelihood depends—drag farmers away into service and cause the farming to be missed. And Guyu is precisely one of the farming seasons in the whole year that tolerates no delay whatsoever: to miss the rain of Guyu, to miss the moment of sowing, is to ruin an entire year's harvest, and even to sow the seeds of famine.

Thus "employing the people according to the season" carries its sharpest, most practical significance precisely at the season of Guyu: this is the moment that most tests whether a ruler truly possesses a "humane heart." A humane ruler restrains every improper desire of his own, and absolutely refrains from conscripting labor service at the very moment of Guyu's urgent sowing, instead leaving this precious farming time—wrested from Heaven itself—entirely and completely to the farmers.

Such restraint, though it may appear passive (doing nothing at all), is in fact the most active form of "humane governance"—it treats "not seizing the farming season" as the greatest respect one can show to the Way of Heaven and to the people's livelihood. Master Meng's saying, "if the farming seasons are not violated, there will be more grain than can be consumed" (Mencius, "King Hui of Liang, Part I"), finds its core spirit most thoroughly embodied precisely at a juncture such as Guyu.

Section 5: Master Xun's "Controlling the Mandate of Heaven" — Human Responsibility Within Guyu

If Master Meng speaks, through "not violating the farming season," of the aspect of "according with Heaven" within Guyu, then Master Xun (Xunzi) speaks, through "controlling the Mandate of Heaven and putting it to use," of the other aspect within Guyu—"exhausting human effort"—and the two form a perfect complement.

Master Xun, in the "Discourse on Heaven" chapter, offers a passage of startling boldness: "Rather than exalting Heaven and pondering it with longing, how much better to treat it as a thing to be raised and controlled$30 Rather than following Heaven and singing its praises, how much better to control the Mandate of Heaven and put it to use$31 Rather than gazing upon the seasons and passively awaiting them, how much better to accord with the seasons and actively employ them to bring about one's aims$32"

Please note in particular the middle line—"rather than gazing upon the seasons and passively awaiting them, how much better to accord with the seasons and actively employ them." "Gazing upon the seasons and awaiting them" is to passively look up and wait for the farming season to arrive; "according with the seasons and employing them" is to actively accord with the farming season, taking the initiative to employ the ten thousand things (plowing, sowing) so as to bring the harvest to fruition.

Master Xun clearly advocates the latter: humanity must not merely wait passively for Heaven's grace, gazing longingly for the timely rain, but must actively "accord with the season and employ it"—when the timely rain of Guyu descends and the farming season arrives, one must rise up vigorously, sow and tend the crops in time, and through human effort transform the "season" and "rain" that Heaven provides into the tangible, actual harvest of "the hundred grains."

This is precisely the human share of responsibility within Guyu's "cooperation between Heaven and humanity." Master Xun does not deny Heaven's role (the timely rain, the warming of the earth, must be bestowed by Heaven), but he emphasizes all the more that Heaven bestows its "season," and humanity must exhaust its "effort"—neither can be dispensed with. Heaven's sending down of Guyu's rain is Heaven's portion; humanity seizing the rain to sow with urgency is humanity's portion.

"Heaven has its seasons, Earth has its resources, and humanity has its governance—this is called being able to form a triad with Heaven and Earth" (Xunzi, "Discourse on Heaven")—Heaven has its seasons, Earth has its produce, and humanity has its work of governance; when the three each fulfill their own portion and join together in mutual participation, this is humanity's proper place between Heaven and Earth. The farming of Guyu is precisely the finest portrait of this "triad of Heaven, Earth, and Humanity participating together": Heaven bestows the timely rain, Earth offers up its fertile soil, humanity carries out the plowing and sowing; the three join together, and only then is "rain giving birth to the hundred grains" accomplished.

Master Xun's principles of "controlling the Mandate of Heaven" and "according with the season and employing it" raise up, for the farmer engaged in Guyu's urgent sowing, a vigorous and actively engaged sense of human responsibility—and together with Master Meng's admonition of "according with Heaven" through "not violating the farming season," one advancing and one withholding, one active and one restrained, the two together constitute the most complete Confucian attitude toward the timing of Heaven at Guyu.

Chapter 5: The Daoist Perspective — Moistening Things in Silence and the Virtue of Non-Contention

Section 1: The Highest Good Is Like Water — The Daoist Character of Guyu's Rain

If Confucianism reads "the humaneness of Heaven and Earth" out of the rain of Guyu, then Daoism reads, from that very same rain, the character of the Dao—the highest good is like water, moistening things in silence, benefiting all without contention.

The Most High (Laozi) speaks, in Chapter 8 of the Daodejing, that eternal saying: "The highest good is like water. Water excels in benefiting the ten thousand things without contending with them, and dwells in places that people disdain—therefore it comes close to the Dao." (上善若水。水善利万物而不争，处众人之所恶，故几于道。) The highest good is like water. Water excels at nourishing the ten thousand things without contending with them, and settles in the lowly places that all people disdain—and for this reason it comes closest to the Dao.

The rain of Guyu is precisely the finest embodiment of this "highest good, like water." Observe how it "benefits the ten thousand things": with a single rain, the hundred grains are brought to life, the grasses and trees are moistened, the seedlings grow tall—it gives the vitality of life to everything between Heaven and Earth, without exception, without partiality. Observe, too, how it "does not contend": the rain nourishes and rears the ten thousand things, yet never claims credit, never demands anything in return, never contends even the slightest bit with the things it nourishes. And observe, finally, how it "dwells in places that people disdain": the rain falls, seeps into the lowest, muddiest soil, and willingly dwells in the very lowest place—while everyone else strives to rise, only water (rain) is willing to flow downward.

The Most High says that water "comes close to the Dao"—nearest of all to the Dao. Guyu's rain, then, is the rain that comes nearest of all to "the Dao." It demonstrates "benefiting the ten thousand things" through silent nourishment, demonstrates "non-contention" through quiet seeping, and demonstrates "dwelling in places that people disdain" through willing occupation of the lowly place. As the ancients gazed up at the sky and scrutinized the earth at the season of Guyu, watching the rain silently infuse each and every seedling with vitality, what they perceived was precisely this power, so near to "the Dao," that transforms all things greatly without a word.

Section 2: "Moistening Things, Fine and Silent" — A Model of Non-Action Through Which Nothing Is Left Undone

One of the core ideas of Daoist thought is "non-action, and yet nothing is left undone" (无为而无不为). What is non-action (wuwei)$33 It is not doing nothing at all, but rather not acting wantonly, not forcing action, not using human effort to distort the natural disposition of things. And what does "nothing is left undone" mean$34 Precisely because one does not act wantonly, all things are accomplished according to their own nature—and so nothing, in the end, is left unaccomplished.

The rain of Guyu is precisely the most perfect natural exemplar of "non-action, and yet nothing is left undone." It practices "non-action"—it is never deliberate, never ostentatious, chooses no particular hour, selects no particular target; it merely follows its nature of "moistening downward," falling quietly, seeping silently. And yet it also achieves "nothing left undone"—it is precisely this silent, soundless nourishment that accomplishes the grand transformation of "rain giving birth to the hundred grains"; whatever between Heaven and Earth possesses the will to live receives its grace, without exception. The rain has "deliberately" done nothing at all, and yet it has accomplished everything.

The Most High says: "The Dao constantly does nothing, and yet nothing is left undone" (道常无为而无不为) (Daodejing, Chapter 37). And also: "In the pursuit of learning, one gains daily; in the pursuit of the Dao, one loses daily. Loss upon loss, until one arrives at non-action. Non-action, and yet nothing is left undone." (Chapter 48)

This supreme wisdom, when put into words, sounds somewhat abstract, but if one simply observes quietly, at the season of Guyu, how a spring rain moistens all things, one may suddenly comprehend it—the Dao's "non-action, and yet nothing left undone" has, all along, been silently playing out above our heads and beneath our feet, every single day. The rain never convenes a council to deliberate which seedling to moisten and which to spare; it simply falls, "without action"—and it is precisely this "non-action" that brings about the "nothing left undone" of the hundred grains' birth.

Section 3: The Virtue of Non-Contention and Guyu's "Yielding"

Daoism places great weight on "non-contention." The Most High says: "It is precisely because he does not contend that no one in the world can contend with him." (Daodejing, Chapter 22) And also: "Water excels in benefiting the ten thousand things without contending with them... It is precisely because it does not contend that it incurs no blame." (Chapter 8) Non-contention is one of the highest virtues in Daoism.

The rain of Guyu enacts "non-contention" to the fullest degree. But still more thought-provoking is the fact that Guyu's very position in "late spring" is itself a kind of "yielding" born of "non-contention." By Guyu, spring has already reached its final act; it is about to yield the stage to summer. Throughout the whole of spring, sprouting diligently, blossoming, coaxing forth the hundred grains—and by Guyu, its achievement is nearly complete—yet it does not cling covetously to the stage, but calmly hands the baton of growth to the summer soon to come, and quietly exits itself. This posture of "accomplishing one's task without claiming credit for it" and "generating life without possessing it" is precisely the state that Daoism most exalts.

The Most High says: "It generates yet does not possess; it acts yet does not presume upon its own ability; it accomplishes its task yet does not dwell upon it. Precisely because it does not dwell upon it, its accomplishment never departs." (Daodejing, Chapter 2) It nurtures the ten thousand things yet does not claim them as its own possession; it acts with effect yet does not presume upon its own capability; it accomplishes its task successfully yet does not dwell proudly upon its achievement. Precisely because it does not dwell upon its achievement, that achievement, in turn, never fades away.

The spring of Guyu has nourished the hundred grains and fostered the mulberry and silk—it may indeed be said to have "accomplished its task"; and yet it turns and yields its place to summer, precisely enacting "accomplishing its task yet not dwelling upon it." This "yielding" of late spring, and the "non-contention" of the rain, resonate together, inner and outer, jointly constituting that Daoist wisdom—humble, self-effacing, and vast—that lies deep within Guyu.

Section 4: "Reversal Is the Movement of the Dao" — The Turning Point of Fullness and Emptiness Within Guyu

Daoism, in its observation of the ten thousand things, discerns one of the deepest patterns of all—"reversal is the movement of the Dao." The Most High says: "Reversal is the movement of the Dao; weakness is the function of the Dao." (Daodejing, Chapter 40) "Reversal" means returning, means the mutual generation of opposites, means that things, having reached their extreme, must turn back. When a thing develops to its utmost point, it must transform into its opposite—this is the fundamental manner in which the Dao moves.

Within Guyu lies concealed precisely this turning point of fullness and emptiness that is "reversal, the movement of the Dao." Guyu is the last solar term of spring, the moment when spring's qi is at its fullest, its most abundant—one degree fuller still, and it must "reverse," must turn into summer. This corresponds precisely to hexagram Guai, which we shall discuss at length below: five yang lines already abundant, about to resolve away the last remaining yin line and become pure yang (hexagram Qian, Start of Summer); yet immediately after yang reaches its extreme, one yin line begins to be born (hexagram Gou, the fifth lunar month in which the Summer Solstice falls). Within the very height of fullness, the seed of the turning point already lies hidden.

Daoist wisdom lies precisely in the ability to foresee "decline" within "flourishing," to foresee "deficiency" within "fullness," to foresee summer within spring's imminent end, to foresee the sprouting of yin within yang's imminent extreme. This forms a profound complement to the Confucian posture of "advancing"—seizing the rain to sow, striving to bring forth vitality: Confucianism teaches people to seize the rain and sow, expanding vitality (exerting effort in the direction of "growth"), while Daoism reminds people that fullness must reverse, that one should retire once one's task is accomplished (remaining clear-headed even amid "fullness"). One advancing, one withdrawing; one active, one still—these are precisely the two most balanced, most profound states of mind with which the Chinese people have faced this solar term of Guyu, "about to be full yet not yet full."

Section 5: "The Dao Models Itself on What Is Naturally So" — The Effortless Rightness of Guyu's Rain

The most central line of Daoist cosmology is the Most High's saying: "Humanity models itself on Earth; Earth models itself on Heaven; Heaven models itself on the Dao; and the Dao models itself on what is naturally so." (Daodejing, Chapter 25) This fourfold chain of modeling can be used precisely to illuminate the nature of Guyu's rain.

What does "the Dao models itself on what is naturally so" mean$1 "What is naturally so" (自然, ziran) does not refer to "Nature" in the sense of mountains, rivers, grasses, and trees, but rather means "being so of itself," "being so originally." The reason the Dao is the Dao is that it models itself on nothing higher; it simply operates, "being so of itself."

Let us apply this level of meaning to Guyu: the rain of Guyu falls in late spring, and coaxes forth precisely the hundred grains, not because anyone "commands" it to do so, nor because it "deliberately" intends to do so, but simply because the qi of Heaven and Earth, having run its course to this point, brings this rain down, "being so of itself." The rain does not force itself, does not contrive, does not calculate—it falls "naturally," moistens "naturally," and brings forth the hundred grains "naturally." This ease of "hitting the mark without effort, attaining without deliberation" is precisely the living manifestation, in a single spring rain, of "the Dao modeling itself on what is naturally so."

From here, let us turn back to "humanity models itself on Earth; Earth models itself on Heaven": at the season of Guyu, humanity should "model itself on Earth"—observing the earth's return to warmth, the sufficiency of soil moisture, the phenology of duckweed sprouting and mulberry greening, and accordingly sowing seed and gathering mulberry leaves with composure. This act of "modeling oneself on Earth," at its highest level, should likewise be "natural"—not a mechanical, rigid following of the calendar, going through the motions by rote, but rather a deep resonance of body and mind with the rhythms of the earth, so that one "knows," naturally and effortlessly, that it is time to sow, time to gather mulberry leaves—like the intuition, passed down through generations of farmers, of "watching the sky, watching the earth, watching the phenology."

The earth's return to warmth "models itself" on Heaven's northward movement (the sun moving north, the noon shadow gradually shortening); Heaven's movement, in turn, "models itself" on the Dao; and the Dao "models itself" on "what is naturally so." Thus, tracing back level by level from a single grain of seed being sown, to the earth's return to warmth, to the sun's northward journey, to the turning of the Dao, all ultimately return to that "being so of itself" which is "what is naturally so."

The rain of Guyu's moistening of things and its coaxing forth of the hundred grains appears, on the surface, to be a deliberate grace of Heaven and Earth (what Confucianism calls "the humaneness of Heaven and Earth"); yet in Daoist eyes, it is still more the great transformation—effortless yet unerring, being so originally—of "the Dao modeling itself on what is naturally so." Heaven and Earth do not "wish" to bestow grace; they simply operate "naturally," and the hundred grains are thereby "naturally" born.

These two interpretations—Confucianism's "deliberate humaneness" and Daoism's "natural transformation"—are precisely like the two faces of Guyu's rain: on one side, a warm and compassionate grace; on the other, an unminded, effortless great transformation. The two mirror each other, and only together do they reveal that deepest character of Guyu's rain—at once compassionate and transcendent.

Chapter 6: Hexagram Guai of the Book of Changes and the Way of "Resolving" — The Firm-and-Yielding Philosophy Deep Within Guyu

Section 1: The Chen Month Matched with Guai — Guyu's Position Among the Twelve Sovereign Hexagrams

The Book of Changes (Zhouyi) is the encyclopedia of pre-Qin thought, containing within it the most profound insight into the laws governing the operation of the cosmos. Although the Book of Changes does not directly discuss the solar terms, its system of hexagrams bears a profound correspondence to the succession of the four seasons. To grasp Guyu's position within the Book of Changes, we must begin with "the twelve sovereign hexagrams" (shi'er xiaoxi gua).

The twelve sovereign hexagrams are twelve special hexagrams matched to the twelve months, displaying the complete process of yin and yang's waxing and waning across the year:

The eleventh month, hexagram Fu ䷗ (one yang line born); the twelfth month, hexagram Lin ䷒ (two yang lines growing); the first month, hexagram Tai ䷊ (three yang lines, "peace and prosperity"); the second month, hexagram Dazhuang ䷡ (four yang lines, "great strength"); the third month, hexagram Guai ䷪ (five yang lines resolving away one yin); the fourth month, hexagram Qian ䷀ (six yang lines, pure yang)—after this, yin qi begins to be born—the fifth month, hexagram Gou ䷫ (one yin line born); the sixth month, hexagram Dun ䷠ (two yin lines growing); the seventh month, hexagram Pi ䷋ (three yin, three yang); the eighth month, hexagram Guan ䷓ (four yin lines flourishing); the ninth month, hexagram Bo ䷖ (five yin lines stripping away the yang); the tenth month, hexagram Kun ䷁ (six yin lines, pure yin).

The third lunar month (the chen month), in which Guyu falls, corresponds precisely to hexagram Guai ䷪. The image of hexagram Guai consists of Dui (☱, marsh) above and Qian (☰, heaven) below, and it is thus also called "Marsh over Heaven, Guai." Its six lines, from bottom to top, are five yang lines followed by a single yin line at the very top—five yang lines below, striving vigorously upward, about to "resolve" (jue), to "guai," away that single yin line at the very top. This is the image of "five yang lines resolving away one yin line," the juncture at which the yang qi has reached great abundance and is about to sweep away the last remnant of yin to become pure yang (hexagram Qian).

How exquisitely fitting it is to match Guyu with hexagram Guai! Guyu is precisely late spring, the season when the yang qi is about to reach fullness and the last remnants of cold (the remnant yin) are about to be exhausted—"at Qingming, snow ceases; at Guyu, frost ceases"—and is not that last trace of frost and cold which "ceases" precisely the topmost yin line that hexagram Guai is about to "resolve" away$2 After Guyu comes Start of Summer; after hexagram Guai comes hexagram Qian—the solar terms' meeting of spring and summer corresponds, seamlessly, to the hexagrams' turn from near-extremity to purity.

Section 2: "Guai Means Resolving" — The Great Principle of Firmness Resolving Away Yielding

What does the character "Guai" (夬) mean$3 The Tuan commentary of the Book of Changes states at the outset: "Guai means resolving; it is the firm resolving away the yielding." The "Appended Statements, Part II" likewise says: "Guai means resolving." "Guai" is "jue" (决, resolving)—it is the firm (yang) resolving away the yielding (yin).

What does "resolving" (jue) mean$4 To resolve is to decide, to remove, to burst forth and break through, to sweep clean and exhaust. The five yang lines have accumulated tremendous force, and are about to thoroughly resolve away that final yin line entrenched at the top—this is an unstoppable, vigorously ascending force of breakthrough. On the natural level, it corresponds to the process, from late spring to early summer, in which yang qi bursts through the remnant cold, sweeping the last chill entirely away with warmth; on the cosmic level, it corresponds to the great trend of brightness resolving away darkness, of growth resolving away withering decay.

The Tuan commentary continues: "Guai means resolving; the firm resolving away the yielding. It is vigorous yet joyous; it resolves yet remains harmonious." (健而说，决而和) Guai is resolving, the firm resolving away the yielding. It (the lower trigram Qian) is vigorous, while (the upper trigram Dui) it is joyous—maintaining harmony even in the midst of resolute decision.

These eight characters are of the utmost importance: "vigorous yet joyous, it resolves yet remains harmonious"—the lower trigram Qian signifies vigor, the upper trigram Dui signifies joy, and so, though Guai is a fierce act of "resolving," it is not a violent resolving that leaves both sides wounded, but rather "resolving yet remaining harmonious"—even while resolving away the remnant yin, the harmony of Heaven and Earth is preserved. This is exactly like Guyu's ceasing of frost: warm qi resolves away the cold frost not through some cataclysmic struggle, but through a transformation that arrives as naturally as water finding its channel, gentle as a soft wind and mild rain—"resolving yet harmonious."

Why is "the firm resolving away the yielding" endowed with such a positive significance$5 Behind this lies the consistent value orientation running throughout the Book of Changes: yang represents brightness, growth, the noble person, and the proper Way; yin represents darkness, withering decay, the petty person, and deviance. Five yang lines resolving away one yin line symbolizes brightness resolving away darkness, the noble person resolving away the petty person, the proper Way resolving away deviance.

This is a righteous, irreversible trend within Heaven and Earth—when righteous qi has accumulated to sufficient strength, it will inevitably burst through and sweep away the last remaining trace of deviance, returning Heaven and Earth to brightness and purity. Guyu's "rain giving birth to the hundred grains," its vitality resolving away the remnant cold, is precisely this great cosmic principle playing out concretely within the course of a single year.

Section 3: The "Resolving" of the Noble Person — Resolving Away the Petty Person and Resolving Away One's Own Private Desires

The "resolving" of hexagram Guai is not merely an image of Heaven and Earth, but also a profound teaching for the Confucian noble person's self-cultivation and governance. The Xiang commentary of the Book of Changes says: "The marsh rises above Heaven—this is the image of Guai. The noble person, taking this as his model, bestows emolument and grace upon those below, while being ever wary of dwelling complacently in his own virtue." (泽上于天，夬。君子以施禄及下，居德则忌。) The waters of the marsh hang suspended high above Heaven (destined eventually to pour down as rain and grace)—this is the image of hexagram Guai. From this the noble person comes to understand that he should extend emolument and grace down to the people below, while remaining ever watchful and wary of dwelling complacently and self-satisfied in his own virtue.

Note well these four characters, "the marsh rises above Heaven"—the waters of the marsh suspended high above Heaven are precisely the image of rain about to fall, yet not yet fallen! The very image of hexagram Guai is itself a picture of "Guyu": the waters of the marsh, gathered in the high heavens, having gathered to their utmost, resolve and pour forth, transforming into the sweet rain that moistens the hundred grains. And what the noble person reads from this picture is "bestowing emolument upon those below"—just as the marsh waters high above resolutely pour down, benefiting the ten thousand things universally, so too should he resolutely bestow his grace upon the people below. This shares precisely the same spirit as Guyu's "rain giving birth to the hundred grains," Heaven's grace descending to reach the multitude.

But the "resolving" of hexagram Guai has a deeper, more difficult layer still—resolving away the "private desire" and "deviance" within one's own heart. The statement for the fifth line reads: "Resolutely, resolutely uprooting the purslane a metaphor for the remaining yin; walking the middle path brings no blame." The Tuan commentary further admonishes earnestly: "Proclaim it within your own city; it is not advantageous to resort immediately to arms, for to exalt force alone will in the end lead to exhaustion." This means: one should begin the work of resolving from one's own city (one's own self, one's own interior), rather than rashly resorting to military force and conquest, for to rely solely on force will, in the end, exhaust its own way. This is a reminder: what true "resolving" must first resolve away is not the enemy without, but the private desires and deviant thoughts within one's own heart.

Still more important is the third line: the noble person, at the moment of resolving away the petty person, must be firm and resolute ("resolutely, resolutely"), yet must also maintain a heart of wariness and caution, and must not presume upon his own strength or grow arrogant. This is precisely the deepest wisdom of hexagram Guai—"the noble person, resolutely, resolutely" and yet still needing to be "wary and cautious."

Resolving is necessary, is proper; but the more one finds oneself in the powerful position of five yang lines resolving away one yin, with victory already assured, the more one must guard against sliding into arrogance, into violence, into "subduing others through force." Though the yang of Guyu is abundant, it must still "resolve yet remain harmonious"; though the noble person's virtue is strong, he must still be "resolutely, resolutely" firm and yet "wary and cautious." This sense of proper measure—"maintaining wariness amid strength, maintaining harmony amid resolution"—is precisely the most precious teaching that hexagram Guai has bequeathed to later generations.

Section 4: "Resolving Yet Harmonious" and "Fullness Invites Loss" — Guyu's Admonition Against Overflowing Fullness

The five yang lines of hexagram Guai already present an image of yang qi filled to abundance, nearing its extreme. And the Book of Changes and the Book of Documents have always held a profound wariness toward "fullness."

The "Counsels of Great Yu" chapter of the Book of Documents says: "Fullness invites loss; humility receives benefit—this is the constant Way of Heaven." (满招损，谦受益，时乃天道) Self-satisfaction invites harm; humility receives benefit—this is the constant principle of the Way of Heaven. The five yang lines of hexagram Guai resolving away one yin line appear, on the surface, entirely auspicious, the yang firmness nearing its very extreme—but precisely at this point of "nearing the extreme," the crisis of "fullness inviting loss" lies concealed. For after yang reaches its extreme comes the birth of yin (after Guai comes Qian, and after Qian comes immediately Gou, in which one yin line begins to be born). Fullness at its extreme must give way to deficiency; abundance at its extreme must give way to loss—this is the constant Way of Heaven.

The solar term of Guyu stands precisely at this position of "fullness nearing its extreme." What it teaches humanity is not only the forward-striving spirit of seizing the rain to sow with urgency, but also an admonition against overflowing fullness, in the spirit of "fullness inviting loss": the more vitality surges and yang qi nears its fullness, the more one must hold fast to a heart of humble restraint and wariness, must not grow arrogant with abundance, must not exhaust the resource to its last drop, must not act wantonly.

This converges, by a different path yet toward the same end, with the Daoist principle of "accomplishing one's task yet not dwelling upon it," and with the Confucian noble person who is "resolutely, resolutely" firm yet "wary and cautious"—together they point toward that deepest wisdom of the Way of Heaven: remaining clear-headed at the very height of flourishing, and holding a heart of humble restraint when nearing fullness. That a single Guyu should contain, simultaneously, these two teachings—"vigorous advance" and "wariness of fullness"—which appear contradictory yet are in fact complementary, is precisely the most dialectical, most harmonious philosophy that hexagram Guai bestows upon Guyu.

Section 5: Guai, Qian, and Gou — The Code of the Heavenly Way in the Cycle of Yin and Yang, Read Through Guyu

Placing Guyu's hexagram Guai back within the tightly interlocking chain of the twelve sovereign hexagrams, we can perceive a profoundly deep code concerning "the cyclical nature of the Heavenly Way."

Observe the close succession of these three hexagrams: the third month, hexagram Guai (five yang lines resolving away one yin) → the fourth month, hexagram Qian (six yang lines, pure yang) → the fifth month, hexagram Gou (one yin line beginning to be born). These three steps enact precisely the complete turning point of "yang nearing its extreme—yang at its extreme—yang's extreme giving birth to yin." Hexagram Guai (in which Guyu falls) is "nearing the extreme"—five yang lines already abundant, just about to resolve away the last yin line; hexagram Qian (in which Start of Summer falls) is "the extreme"—six lines of pure yang, the yang qi having reached its very pinnacle; and the hexagram Gou that immediately follows (the fifth month, in which the Summer Solstice falls) is already "yin being born"—beneath that seemingly all-conquering pure yang, a single yin line has quietly sprouted at the very bottom.

This chain of "Guai → Qian → Gou" conceals one of the deepest insights of the Book of Changes: within the very height of flourishing, its opposite is inevitably concealed; yang nearing its extreme is already yin nearing its birth. Guyu's hexagram Guai stands precisely at the most crucial point of this insight—it is "nearing the extreme," the eve of the liminal moment at which the yang qi is about to reach its summit (Qian), yet is also about to turn from that very summit toward decline (Gou). Standing at this position of Guyu and looking back, the ancients perceived not a single line rising ever upward (yang qi endlessly increasing), but an eternally recurring circle (yang's extreme turning to yin, yin's extreme turning to yang, cycling without end).

The "Appended Statements, Part II" of the Book of Changes says: "When the sun goes, the moon comes; when the moon goes, the sun comes; sun and moon push against each other, and brightness is thereby born. When cold goes, heat comes; when heat goes, cold comes; cold and heat push against each other, and the year is thereby completed." When the sun departs, the moon arrives; when the moon departs, the sun arrives; sun and moon push against each other in mutual succession, and brightness is thereby produced; when cold departs, heat arrives; when heat departs, cold arrives; cold and heat push against each other in mutual succession, and the year is thereby formed.

These four characters, "cold and heat push against each other" (寒暑相推), say everything about the cycle of the Heavenly Way enacted by Guai, Qian, and Gou—there is no eternal flourishing, nor any eternal decline, only the ceaseless "mutual pushing" of flourishing and decline pushing against each other, of yin and yang surging against each other, without end. Guyu's hexagram Guai is precisely the most tension-filled link in this chain of "mutual pushing," a link that both carries forward what came before and opens what follows: it succeeds the "four yang lines" of hexagram Dazhuang (the accumulation of growth), and is about to open the way to the "pure yang" of hexagram Qian (the summit of growth) and the "one yin" of hexagram Gou (the sprouting of decline).

A single Guyu is thus bound up with the entire code of the Heavenly Way in the Book of Changes—"flourishing and decline pushing against each other, cycling without end." To understand the position of Guyu's hexagram Guai within this chain is to understand that profound and harmonious Chinese cosmology of time, in which "autumn and winter are already glimpsed within the very height of spring's flourishing, and the birth of yin is already foreknown within yang's approaching fullness."

Chapter 7: The Phenological World of Guyu (Part One) — Duckweed Begins to Grow: The Image of Rootless Life and Warming Waters

Section 1: The Philosophical Significance of Phenology — Heaven and Earth Speaking Through Things

Guyu has three pentads (five-day periods): in the first, duckweed begins to grow; in the second, the cuckoo flaps its wings; in the third, the hoopoe descends upon the mulberry. Before delving into each pentad, we must first understand: why did the ancients place such weight upon phenology$6

Because, in the ancients' cosmology, Heaven does not speak, but rather "speaks" through phenology. The Master said: "What does Heaven ever say$7 The four seasons proceed on their course, and the hundred things are born—what does Heaven ever say$8" (Analects, "Yang Huo") Heaven never uses language; it expresses itself through the movement of the four seasons and the growth of the hundred things.

And phenology is precisely the concrete vocabulary of Heaven's "speech"—when duckweed grows, Heaven is saying "the water has warmed"; when the cuckoo calls, Heaven is saying "it is time to plow"; when the hoopoe alights on the mulberry, Heaven is saying "tend the silkworms." The ancients read phenology as one reads a book written by Heaven; through these subtle natural signals, they grasped the rhythm of Heaven and Earth's qi in motion, and accordingly arranged human production and life.

Guyu's three pentads happen to encompass three distinct domains: plants (duckweed), birdsong (the cuckoo), and sericulture (the hoopoe descending upon the mulberry). Through this cross-verification of phenology across three distinct domains, the ancients confirmed the true arrival of Guyu's qi, embodying a plain yet rigorous spirit of empirical verification.

Section 2: "Duckweed Begins to Grow" — How Does Duckweed Grow Without Roots$9

Guyu's first pentad is "duckweed begins to grow"—duckweed starts to sprout. The "Explanation of the Seasonal Instructions" chapter of the Lost Book of Zhou (Yi Zhoushu) records: "On the day of Guyu, duckweed begins to grow." This pentad, seemingly plain, in fact contains the ancients' profound apprehension of the relationship among "water," "warmth," and "life."

Duckweed is an exceedingly peculiar plant. It has no roots (or only fine, hair-like roots hanging in the water without taking hold in soil), floats upon the water's surface, and drifts with the waves. In the eyes of the ancients, this plant that "lives without roots" was a sign laden with meaning.

The ancients observed that duckweed sprouts and multiplies only once the water temperature has risen to a certain degree. Thus "duckweed begins to grow" is, at its core, a signal of "the water having warmed": when duckweed begins to spread across the water's surface, it shows that the water has already warmed, that the earth's qi has already risen, and that the chill has already been exhausted.

This responds precisely to "at Guyu, frost ceases"—the beginning growth of duckweed is precisely the phenological confirmation of "frost ceasing." The frost has ceased, the water has warmed, the duckweed has grown—these three are the manifestation, on different levels, of one and the same event: warmth overcoming cold.

Section 3: Life Without Roots — The Daoist Interest of Duckweed

"Duckweed begins to grow" is thought-provoking also because duckweed's characteristic of "living without roots" happens to touch upon the deepest mysteries of Daoist thought.

Ordinary grasses and trees all sink deep roots, firmly rooted, planted in the soil—this is the image of "a firm foundation" that Confucianism exalts ("the noble person attends to the root; once the root is established, the Way is born"). Duckweed, by contrast, has no root at all, does not take hold in the soil, but is born with the water and drifts with the waves. Its "life" does not depend on any fixed foundation, but depends on that "water" which upholds it and nourishes it. What a free, what a compliant posture toward life this is!

Master Zhuang (Zhuangzi), discussing life, places the greatest weight on "riding upon things to let the mind roam free" and "yielding and adapting along with things"—following the natural tendencies of the ten thousand things, letting the mind wander freely at ease. Duckweed, rootless and drifting, living with the water, is precisely a natural depiction of this posture of "riding upon" and "yielding and adapting": it clings to no single fixed foundation, does not resist the direction of the current; when the water warms, it grows; when the water flows, it follows; when the water dries up, it stops—all according with what is naturally so, entirely free of entanglement. The Most High says, "concentrating one's qi and attaining the utmost suppleness, can one become like an infant$10"—and also praises water's yielding suppleness and non-contention. Duckweed's suppleness, its compliance, its rootless ease, may well be regarded as a small embodiment, among plants, of the virtues of "suppleness" and "non-contention."

At a still deeper level, that duckweed can "live" despite having "no root" reveals a Daoist-style paradox: the foundation of life need not be a tangible "root," but might instead be that intangible, flowing "water" (the Dao) that upholds all things. Confucianism attends to the "root" (a tangible foundation), while Daoism reminds us: there is also a kind of "life" that depends on no tangible root at all, but rests directly within that ceaselessly flowing river of great transformation (water, the Dao). Guyu's first pentad, "duckweed begins to grow," quietly conceals, in utter silence, this very Daoist mystery.

Section 4: Duckweed and the Waters of Late Spring — Another Brushstroke of Heaven and Earth's Nurturing

The name Guyu places its emphasis on "rain," on "water." And the first pentad, "duckweed begins to grow," is likewise a matter of "life within water"—it forms a precise echo with "rain giving birth to the hundred grains," together writing out the theme of Guyu "nurturing life through water," differing only in that one occurs in the fields, the other in the water; one is prominent (the hundred grains), the other minute (duckweed).

The birth of the hundred grains is grand, bound up with the people's livelihood, and prominent; the growth of duckweed is minute, unrelated to livelihood, and unremarkable. Yet in the eyes of Heaven and Earth's nurturing, the two carry no hierarchy—both alike are life coaxed forth by a single warmth, a single expanse of water.

The humaneness of Heaven and Earth does not care only for the five grains that sustain the multitude, but cares equally for that duckweed drifting unnoticed upon the waves. A single Guyu brings forth both the hundred grains and the duckweed; it moistens both the prominent and the great and the humble and the small. This is precisely the other face of the Daodejing's statement, "Heaven and Earth are not humane; they treat the ten thousand things as straw dogs"—Heaven and Earth regard all things with perfect impartiality, neither favoring the hundred grains for their "usefulness" nor slighting the duckweed for its "uselessness."

Viewed in this light, "duckweed begins to grow"—this seemingly most unremarkable of pentads—in fact reminds us: the nurturing grace of Guyu extends universally to all things, without the slightest partiality. It bids us, even as we gaze upward in admiration at the abundance of "rain giving birth to the hundred grains," not to forget to look down as well, at that small duckweed quietly spreading across the water's surface, equally blessed by Heaven's grace.

Chapter 8: The Phenological World of Guyu (Part Two) — The Cuckoo Flaps Its Wings: The Voice of Heaven's Timing That Urges the Plowing

Section 1: "The Cuckoo Flaps Its Wings" — What Bird$11 What Does It Do$12

Guyu's second pentad is "the cuckoo flaps its wings" (鸣鸠拂其羽). The "Explanation of the Seasonal Instructions" chapter of the Lost Book of Zhou records: "Five more days pass, and the cuckoo flaps its wings." What bird is this "calling cuckoo" (mingjiu)$13 And what does "flapping its wings" mean$14

"Jiu" was, in ancient times, a general term for a category of birds, and the "calling cuckoo" here is mostly interpreted as the common cuckoo (also called shijiu, huogu, or guogong). "Flapping its wings" describes it beating and fluttering its wings—this is the typical posture of the cuckoo when breeding, courting, and active. By the time of Guyu, the cuckoo begins to flap its wings and call frequently, its cry of "cuck-oo—cuck-oo—" ringing out across the fields.

Why did the ancients list "the cuckoo flaps its wings" as a pentad of Guyu$15 Because the cuckoo's cry aligns with the farming season to a striking degree. It is precisely around the time of Guyu—the most crucial season for sowing—that it begins to call loudly. That cry of "cuck-oo, cuck-oo," to the ears of the ancients, sounded like nothing so much as an "envoy sent by Heaven to urge the plowing," as if calling out again and again: "Sow the grain! Sow the grain!" And so this bird came to bear the name "cuckoo" (bugu, literally "spread the grain")—the very name itself expresses its function of urging people to sow.

Section 2: Heaven's Timing Within Sound — Why Did the Ancients Place Such Weight on "Bird Speech"$16

"The cuckoo flaps its wings" is the only one of Guyu's three pentads centered primarily on "sound" (the first pentad, duckweed growing, is visual; the third pentad, the hoopoe descending, is behavioral; only the second highlights "calling"). Behind this lies the ancients' distinctive wisdom of "telling time by sound."

In high antiquity, without clocks or calendars, sound was an extremely important means of "telling time." Different birds called at different seasons; hearing a particular birdcall, one knew that a particular farming season had arrived. The cuckoo calls at Guyu, urging people to sow the grain; the cuckoo (dujuan, a different species also called cuckoo in English) cries deep in spring, its call sounding again and again like "better to return home"; the cicada (han chan) drones as autumn arrives—these "bird speeches" together constitute a living, three-dimensional "sound calendar," resounding throughout Heaven and Earth. The ancients had only to lend an ear, and they knew Heaven's timing.

At a still deeper level, "the cuckoo flaps its wings" was treasured also because it confirmed the belief in "Heaven and humanity moving each other." Why does the cuckoo call precisely at Guyu, of all times$17 In the eyes of the ancients, it was not that the cuckoo "decided on its own" to call, but that the qi of Heaven and Earth, having run its course to the stage of bringing forth the hundred grains, moved the cuckoo, causing it, unable to restrain itself, to flap its wings and cry out. The bird's call is the "spokesperson" of the qi of Heaven and Earth. And so to listen to the cuckoo's cry is to listen to the qi of Heaven and Earth; to hear the bird's speech and thereby know the farming season is to borrow the bird's mouth in order to understand Heaven's instruction.

Section 3: The Cuckoo Urging the Plowing — The Precise Meshing of Phenology and Farm Work

The most moving aspect of "the cuckoo flaps its wings" lies in how seamlessly it meshes "phenology" with "farm work."

Guyu is the crucial period for sowing the hundred grains, when every second counts. And it is precisely at this time that the cuckoo calls without ceasing, like a natural, never-tiring "farming-season alarm clock," reminding the farmers day after day, from high above the fields: do not miss the farming season, sow the seed swiftly. This precise correspondence between phenology and farm work is by no means accidental—it is the result of the ancients' observation, selection, and distillation over thousands of years. Among the countless bird calls of late spring, the ancients singled out precisely "the calling cuckoo" as the marker of Guyu, precisely because its calling period aligns most accurately, most usefully, with the sowing period.

This, once again, confirms the essential nature of solar-term phenology: it is not the romantic musings of literati over wind and moon, but an extremely practical "survival guide" bound up with an entire year's livelihood. That "the cuckoo flaps its wings" was solemnly listed as Guyu's second pentad is, at bottom, because it calls out one of the most practical statements of all—"It is time to sow the grain!"

Section 4: The Cuckoo (Shijiu) in the Book of Songs — From a Bird That Urges the Plowing to a Metaphor for Virtue

The cuckoo (shijiu) is also endowed, in the Book of Songs, with a layer of moral significance worth mentioning here.

The poem "Shijiu" in the "Odes of Cao" opens: "The cuckoo is in the mulberry tree; its young number seven. The good man, the noble person—his bearing is ever one and the same. His bearing is ever one and the same; his heart is as if bound fast." (鸤鸠在桑，其子七兮。淑人君子，其仪一兮。其仪一兮，心如结兮。) The cuckoo perches in the mulberry tree, rearing seven fledglings. That good and noble person—his bearing is constant, ever the same. His bearing is constant because his heart is single-minded and firm, as if tied in a knot.

Why does this poem take the cuckoo as its opening image, using it to liken the noble person's virtue$18 According to the ancient commentators, the cuckoo, in rearing its many fledglings, feeds them "from the top down in the morning, from the bottom up in the evening," treating them all equally, without any partiality—it regards its seven young with perfect impartiality, embodying a virtue of "equal, single-minded evenness." And so the poet, borrowing the cuckoo's "evenness," evokes and likens to it the noble person's "constant bearing" and "heart as if bound fast"—the singleness, fairness, and unshakable firmness of virtuous conduct.

Interestingly, the cuckoo in the poem "Shijiu" is found "in the mulberry"—perched in a mulberry tree—and Guyu's third pentad is precisely "the hoopoe descends upon the mulberry," likewise involving the mulberry tree. The sound of the cuckoo urging the plowing and the matter of mulberry and silk quietly converge upon this image of the mulberry tree. From a bird that urges the plowing, to a virtue of impartial evenness, to an image of perching in the mulberry—a single small cuckoo threads together Guyu's farming season, moral teaching, and sericulture, revealing just how minutely the ancients observed things, and how deeply they embedded meaning within them.

Chapter 9: The Phenological World of Guyu (Part Three) — The Hoopoe Descends Upon the Mulberry: The Heaven-Ordained Destiny of Sericulture and Women's Work

Section 1: "The Hoopoe Descends Upon the Mulberry" — What Bird Is the Hoopoe$19 What Does Its Descent Mean$20

Guyu's third pentad is "the hoopoe descends upon the mulberry." The "Explanation of the Seasonal Instructions" chapter of the Lost Book of Zhou records: "Five more days pass, and the hoopoe descends upon the mulberry."

The hoopoe (daisheng) is a bird of highly distinctive appearance: atop its head grows a magnificent crest of feathers that can open like a crown, resembling a sheng—a splendid headdress worn by women in ancient times—hence its name "daisheng," "wearer of the sheng." Its beak is long and downward-curving, and its plumage is vividly patterned. "Descends upon the mulberry" means that the hoopoe, at the season of Guyu, flies down and alights upon the mulberry tree.

Why did "the hoopoe descends upon the mulberry" become a hallmark phenological marker of Guyu$21 The key lies in that character "mulberry." The mulberry is the lifeline of sericulture—silkworms feed on mulberry leaves and spin silk, and silk can be woven into cloth, the very foundation by which the ancients clothed the world. And the hoopoe's "descent upon the mulberry" occurs precisely at the season of Guyu, when the mulberry leaves are newly sprouted and the work of silkworm-rearing is about to begin. When the ancients saw the hoopoe alight on the mulberry, they knew: the mulberry leaves could now be gathered, the silkworms should now be reared, and the great yearly affair of women's work and sericulture had reached its beginning. Thus the hoopoe's descent upon the mulberry was Heaven's "order for the work of silkworms," issued to the women of the realm.

Section 2: Mulberry and Silkworm — The Foundation of Clothing the World

To understand the weight of "the hoopoe descends upon the mulberry," one must first understand the supreme standing of the "mulberry" in the life of the ancients.

If "grain" was the foundation of the ancients' "food," then "mulberry" was the foundation of the ancients' "clothing." "Men plow, women weave" was the most fundamental division of labor in Chinese agrarian civilization—men tilled the fields and grew grain, to resolve the matter of "food"; women gathered mulberry leaves and reared silkworms, reeling silk and weaving cloth, to resolve the matter of "clothing." Grain and mulberry, food and clothing, were the two great pillars supporting the entire civilization. And the solar term of Guyu is precisely, at one and the same time, the crucial juncture for "grain" (rain giving birth to the hundred grains, sowing) and the beginning of "mulberry" (the hoopoe descending upon the mulberry, the start of silkworm-rearing)—it single-handedly bears the two great foundations of food and clothing, and its weight may be seen in this alone.

The "King Hui of Liang, Part I" chapter of the Mencius, depicting the ideal realm of kingly rule, opens with these words: "Let mulberry trees be planted about the homesteads of five mu, and those who are fifty may be clothed in silk." Homesteads of five mu, planted with mulberry trees—those fifty years of age may then be clothed in silk. That Master Meng speaks of "planting mulberry—rearing silkworms—being clothed in silk" as a matter of the very first importance for kingly rule, for the peaceful and contented life of the common people, shows plainly the foundational standing of mulberry and silkworm in the hearts of the ancients. And the starting point of all this lies precisely at Guyu—the late-spring season when the hoopoe descends upon the mulberry, the mulberry leaves are first gathered, and the work of silkworms begins to flourish.

Section 3: Gathering Mulberry Leaves in the Book of Songs — A Poetic Depiction of Guyu's Women's Work

The matter of mulberry and silkworm at the season of Guyu has left behind, in the Book of Songs, a wealth of moving images—China's earliest "mulberry-gathering poems."

We have already cited, from "Qiyue" in the "Odes of Bin": "The spring days grow warm; the oriole sings. The maidens take up their deep baskets, and follow the little paths, seeking the tender mulberry leaves. The spring days grow long; the artemisia-gatherers move busily about." In the warm sun of spring days, the oriole sings; the girls carry their deep baskets, and follow the small paths to gather the tender mulberry leaves; the spring days stretch long, and the gatherers of mugwort move about busily, many in number. This is precisely a true silhouette of the mulberry-gathering maidens' labor around the time of Guyu: carrying deep baskets in hand, walking along the field paths, all for the sake of gathering those tender mulberry leaves to feed the silkworms.

"Shi Mu Zhi Jian" ("Between the Ten Mu") in the "Odes of Wei" likewise says: "Between the ten mu of mulberry field, the mulberry-gatherers move at ease; let us go home together, you and I." Amid the ten mu of mulberry field, the mulberry-gatherers move unhurriedly and at ease; let me go home together with you. This depicts the leisurely scene of people returning home together after their mulberry-gathering labor, a picture warm and full of the texture of everyday life.

These mulberry-gathering poems elevate the women's work and sericulture of the Guyu season from mere labor into a poetic scene of life, full of human warmth. They record not merely the act of gathering mulberry leaves, but the toil, the ease, the companionship, and the sentiment of the mulberry-gathering maidens. That "gathering mulberry" later became an enduring image in poetry and song has its very source in these Guyu-season scenes of mulberry recorded in the Book of Songs.

Section 4: The Rite of the First Sericulturist — The Profound Meaning of the Queen Consort's Personal Mulberry-Gathering, Between Heaven and Humanity

The weight of mulberry and silkworm at Guyu was so great that even the queen consort had to personally take part—this was the rite of "the queen's own sericulture" (qincan, gongsang), together with the sacrifice to "the First Sericulturist" (the spirit of silkworms).

As cited earlier, the governance of the third month of spring in the "Monthly Ordinances" of the Book of Rites: "The curved frames, upright posts, round baskets, and square hampers are prepared; the queen consort fasts and purifies herself, and faces east to gather mulberry leaves with her own hands." The tools for silkworm-rearing are made ready; the queen consort fasts and purifies herself, and faces east to gather mulberry leaves with her own hands. What solemnity this is! That the mother of the entire state should fast and bathe in purification, and personally go down into the field to gather mulberry leaves, so as to set an example for all the women of the realm, encouraging and sanctifying the work of sericulture.

Why was the queen consort's personal mulberry-gathering so important$22 Because it corresponds to the Son of Heaven's "personal plowing" (personally guiding the plow to till the field, so as to encourage farm work), together constituting the sacred demonstration, at the state's very highest level, of "men plow, women weave." The Son of Heaven personally plows the southern suburban field (the "sacred field," jitian), to give weight to "grain"; the queen consort personally gathers mulberry leaves (personal sericulture, sacrifice to the First Sericulturist), to give weight to "mulberry." One plowing, one mulberry-gathering; one food, one clothing; one yang, one yin—the Son of Heaven and queen consort, leading by their own example, proclaim to the entire realm that agriculture and sericulture are the very foundation upon which the state is established, a matter that not even the sovereign dares to treat lightly.

As for "the First Sericulturist" (Xiancan), this is the silkworm spirit who first taught the people to rear silkworms (according to legend, perhaps Leizu of the Xiling clan, consort of the Yellow Sovereign). Sacrificing to the First Sericulturist and performing the rite of personal sericulture around the time of Guyu was a way of giving thanks to that ancestor (or deity) who bestowed upon humanity the art of mulberry and silk, and of praying that this year's silkworm-rearing would go smoothly and yield an abundant harvest of silk.

This system of ritual elevates the matter of mulberry and silkworm at Guyu from mere labor in the fields into a solemn ceremony bearing upon Heaven and humanity, upon the very altars of the state. Behind this small pentad, "the hoopoe descends upon the mulberry," lies connected the queen consort's fasting, the sacrifice to the First Sericulturist, and the very foundation of the state altars—the minuteness of phenology and the weight of ritual propriety merge here into one.

Chapter 10: Yin-Yang and the Five Phases in Guyu — Wood's Virtue Nearing Its End and the Nurture of Water and Grain

Section 1: The Final Hour of Wood's Spring

Guyu belongs to the third month of spring, and the third month of spring belongs to the virtue of Wood—this we have already established above. But as the very last term of spring, the "virtue of Wood" to which Guyu corresponds is a special kind of Wood virtue—Wood virtue nearing its end.

Among the Five Phases, Wood governs spring, its nature being "bending and straightening," symbolizing growth, unfolding, upward reaching, and free extension. The whole of spring is the season when Wood's virtue holds sway and vitality surges forth. Yet by Guyu, Wood's virtue has already run to its final act—the third month of spring is about to end, and what lies just ahead is summer, the virtue of Fire. And so Guyu's Wood virtue is a Wood virtue of "accomplishment about to withdraw": it has already completed its entire mission of coaxing forth sprouts, sending out shoots, extending branches, blossoming, and bringing forth the hundred grains, and is now preparing to hand over the reins of season to the Fire virtue of the summer soon to come.

This "nearing its end" does not signify decay—quite the opposite, it signifies fulfillment. Wood's virtue has already accomplished everything it was meant to do in spring—the duckweed has grown, the mulberry has turned green, the grain has been sown, and the ten thousand things have all "come forth from their curled state, extended from their sprouting state." Wood's virtue, at Guyu, takes its bow in composure, its task fully accomplished, rather than expiring from exhaustion. This corresponds precisely to the Book of Changes' hexagram Guai—yang (vitality) already at its abundant height, about to resolve away the last remnant of yin and become pure yang; Wood's virtue already fulfilled, about to yield its place to the Fire virtue and enter high summer. Retiring at the height of flourishing, yielding once the task is accomplished—this is precisely what Guyu's Wood virtue interprets: a "turning within fulfillment."

Section 2: The Mutual Generation of the Five Phases — Wood Generating Fire and the Meeting of Spring and Summer

Guyu stands at the meeting of spring and summer, precisely the juncture of the Five Phases' "Wood generating Fire"—a point laden with meaning.

The sequence of the Five Phases' mutual generation runs: Wood generates Fire, Fire generates Earth, Earth generates Metal, Metal generates Water, Water generates Wood, cycling without end. Why does Wood generate Fire$23 Because wood is combustible; friction on wood can produce fire; wood is the mother of fire, the source of fire. In the correspondence with the four seasons, Wood (spring) generating Fire (summer) means that spring's vitality (Wood) is the matrix and source of summer's abundance (Fire)—without spring's "birth," there would be no summer's "growth"; the life force that spring accumulates and coaxes forth (Wood) can only, by summer, burn and swell into surging abundance (Fire).

Guyu, as the end of spring and the conclusion of Wood's virtue, stands precisely at this liminal point of "Wood generating Fire." It is the moment when Wood's virtue hands the spark of life over to Fire's virtue—the hundred grains that spring diligently coaxed forth (the achievement of Wood's virtue) are about to, in summer's blazing sun (Fire's virtue), jump their joints, put forth ears, fill with grain, and swell to fullness.

Thus the significance of Guyu's "rain giving birth to the hundred grains" lies not only in the sprouting before our eyes, but still more in how it prepares the object and foundation for the entire summer's "growth under Fire's virtue." Without Guyu's rain coaxing forth the hundred grains, summer's Fire virtue would have no grain to "grow." Viewed from this angle, Guyu is the relay-point of "Wood generating Fire"—it solemnly and fully hands over, into the coming hands of summer's Fire, the entire vitality that spring's Wood has gestated.

Section 3: The Virtue of Water — Guyu's "Rain" and the Nurture of the Five Grains

Though Guyu belongs to the season of Wood's virtue, its name places its emphasis on "rain," on "water." This raises a profound question: water (rain), which in the Five Phases properly belongs to winter and to the north, why does it play such a crucial role in Guyu, the Wood-virtue season of spring$24

The answer lies in another link of the Five Phases' mutual generation—"Water generates Wood." Water generating Wood means that water is Wood's mother, the wellspring of vitality. Grasses and trees cannot grow without water; the hundred grains cannot grow without rain. And so, although Guyu belongs, in terms of its "presiding Five Phase," to Wood, the fundamental force that sets this Wood virtue in motion, that nourishes these hundred grains, comes from water (rain). The very name "Guyu" places "rain" before "grain," precisely hinting at this causal relationship: it is "water" (rain) that nurtures and gives birth to "wood" (grain). Water is the mother, wood the child; rain is the cause, grain the effect.

The "Water and Earth" chapter of the Guanzi exalts water to an unsurpassed degree: "What is water$25 It is the origin and foundation of the ten thousand things, the ancestral home of all life." What is water$26 It is the origin of the ten thousand things, the ancestral root of all living things. In the view of the Guanzi, water is not merely one of the Five Phases, but something prior to and deeper than the Five Phases, the fundamental basis upon which all things depend for their transformation and birth. The rain of Guyu is precisely this "origin of the ten thousand things" pouring itself grandly into the hundred grains of late spring.

From this we understand the exquisite subtlety of Guyu within the Five Phases: on the surface it belongs to Wood (the third month of spring), but in fact it is a grand gathering of "mother generating child" between water (rain) and wood (grain). The "nurture" of water and rain sets in motion the "birth" of Wood's virtue, and together they accomplish "rain giving birth to the hundred grains." Within Guyu, the virtue of Water and the virtue of Wood proceed hand in hand—water as the mother, moistening downward; wood as the child, flourishing upward—this is the most tender, most abundant scene in the entire mutual generation of the Five Phases.

Section 4: The Waxing and Waning of Yin and Yang — Guyu's Position of "Five Yang Lines Resolving Away One Yin"

Viewed from the perspective of yin and yang, Guyu (the chen month, hexagram Guai) stands at the position of "five yang lines resolving away one yin"—the yang qi has already accumulated to five parts, with only the topmost single part of remnant yin still awaiting resolution. This is the juncture within the year at which the yang qi is at its most abundant, about to reach fullness (pure yang, hexagram Qian, at Start of Summer).

This means that the qi of Heaven and Earth at the season of Guyu is highly "yang" in character—warm, generative, upward-reaching, outward-radiating, surging with vitality. "At Qingming, snow ceases; at Guyu, frost ceases"—that last trace of frost and chill which is resolved away is precisely that final part of remnant yin. Amid this abundant yang qi, the ten thousand things vie to break through the soil, extend upward, and flourish, presenting the grand scene of "the curled things all emerging, the sprouting things all extending."

Yet the profundity of the Book of Changes lies precisely in this: even amid the abundant height of "five yang lines," it has already foreseen the imminent birth of "one yin line." After hexagram Guai (five yang resolving away one yin) comes hexagram Qian (six yang lines), and immediately after hexagram Qian comes hexagram Gou (one yin line beginning to be born). Fullness at its height must turn; yang at its extreme gives birth to yin. And so the yin-yang qi of Guyu is a state of "flourishing at its height, about to turn"—it pushes the grandeur of yang qi to its very summit, while simultaneously, quietly, approaching that liminal point of turning.

This state of "flourishing at its height, about to turn" is precisely the deepest revelation that Guyu offers: at the very moment when yang qi is most abundant and vitality most vigorous, one must understand that the turning point already lies concealed behind this grandeur, and must therefore both vigorously seize the vibrant vitality of the present moment (seizing the rain to sow with urgency) and hold, at the same time, a heart of humble caution regarding "fullness at its height must give way to loss" (guarding against overflowing fullness). "One yin, one yang—this is called the Dao" (Book of Changes)—the solar term of Guyu enacts this turning point of "one yin, one yang" waxing and waning to its most liminal, most subtle extreme.

Chapter 11: Guyu and Farming — Rain Giving Birth to the Hundred Grains, Not Violating the Farming Season

Section 1: "Rain Giving Birth to the Hundred Grains" — The Lifeline of Agrarian Civilization

Guyu, with respect to farming, is a solar term upon which the very lifeline of survival depends. Its name, "rain giving birth to the hundred grains," is itself the most condensed statement of an agricultural program—this rain exists to "give birth to" the hundred grains.

Why is Guyu's rain so crucial$27 Because sowing, transplanting, and coaxing forth seedlings all depend, to an extreme degree, on the proper coordination of moisture and soil warmth. Before Guyu, the earth's qi may not yet be fully warm, and the frosty chill may not yet be fully gone, so sowing carries risk; after Guyu, as summer approaches, temperatures rise sharply and evaporation intensifies, raising the danger of insufficient soil moisture. Only at the season of Guyu—when the frosty chill has ceased, the earth's qi has warmed, and the rains are abundant—do water temperature and soil warmth align exactly, offering a heaven-sent opportunity for sowing and coaxing forth seedlings.

To miss this window is, as the saying goes, "when a person misses the moment, the earth misses him for a year"—an entire year's harvest would suffer. And so the farmers' proverb says, "around Guyu, plant melons and sow beans," and also, "if flowers are not planted at Guyu, one's heart feels as if crabs were crawling within"—depicting, with vivid precision, the urgency of Guyu's rush to sow.

This places the entire weight of "respectfully bestowing the seasons upon the people" squarely upon this solar term of Guyu. The ultimate purpose of the ancients' millennia of observing the heavens, scrutinizing the earth, and calculating the calendar was precisely to seize accurately upon a farming juncture such as Guyu, sowing the seed in time within the heaven-sent moment of "rain giving birth to the hundred grains." The entire history of Chinese astronomy and calendrics is, at bottom, the great learning—bearing upon life and death, survival and ruin—devoted to never missing a rain such as Guyu's, never missing a year's grain.

Section 2: Not Violating the Farming Season — Master Meng's Agricultural-Political Wisdom

What is most feared in Guyu's urgent sowing$28 Missing the season. And within Confucian political wisdom, the most forceful teaching addressing this fear of "missing the season" is Master Meng's principle of "not violating the farming season."

The "King Hui of Liang, Part I" chapter of the Mencius records Master Meng's words: "If the farming seasons are not violated, there will be more grain than can be consumed; if fine-meshed nets are not allowed into the ponds and pools, there will be more fish and turtles than can be consumed; if axes and hatchets enter the mountain forests only at the proper season, there will be more timber than can be used. When grain, fish, and turtles are more than can be consumed, and timber is more than can be used, this enables the people to nurture the living and mourn the dead without regret. To nurture the living and mourn the dead without regret is the beginning of the kingly Way."

Observe the exceedingly fundamental position in which Master Meng places "not violating the farming season"—it is the primary condition for there being "more grain than can be consumed," the very foundation for "enabling the people to nurture the living and mourn the dead without regret," and moreover "the beginning of the kingly Way"! In Master Meng's view, the starting point of the kingly Way (ideal governance) is not some lofty moral preaching, but the plainest of matters: not delaying the farmers' farming season, so that they may grow more grain than they can consume.

And Guyu is precisely one of the junctures of "farming season" that tolerates no violation whatsoever. "Not violating the farming season" bears its sharpest, most concrete implication precisely at the season of Guyu: the ruler must absolutely not conscript labor or mobilize the people's strength at the moment of Guyu's urgent sowing, but must leave this fleeting farming season, wrested from Heaven itself, entirely and completely to the farmers in the fields. To safeguard Guyu's farming season is to safeguard "the beginning of the kingly Way." Master Meng's teaching here raises, from a philosophical height, a protective canopy of "do not seize the farming season" over the farmers engaged in Guyu's urgent sowing.

Section 3: The Governance of Mulberry and Silk — The Other Half of "Men Plow, Women Weave"

Guyu's farm work is not only "plowing" (sowing grain), but also "mulberry" (rearing silkworms)—this is the other half of agrarian civilization's "men plow, women weave."

We have already discussed at length, in the section on "the hoopoe descends upon the mulberry," the weight of mulberry and silk. Here let us add a further point from the perspective of "agricultural governance": in the ancients' governance of the state, "encouraging agriculture" and "encouraging sericulture" were two great affairs of government, given equal weight. The third month of spring's ordinances in the "Monthly Ordinances" of the Book of Rites—"cut down no mulberry or cudrania trees," "encourage the work of silk-rearing"—constitute the state-level "governance of encouraging mulberry." It protects, through legal ordinance (forbidding the felling of mulberry and cudrania trees), the mulberry-tree resources upon which sericulture depends for its survival, and encourages and sanctifies the work of silkworm-rearing through the demonstration of the queen consort's own mulberry-gathering.

Why did the state take "encouraging mulberry" so solemnly$1 Because "clothing" and "food" are equally important, and neither can be dispensed with. A state that values only the growing of grain and neglects the rearing of silkworms may fill its people's stomachs, yet leave them without clothing to guard against the cold. And so true good governance, true "humane governance," must give equal weight to plowing and mulberry, must attend to both food and clothing together.

The solar term of Guyu happens to embody, in a single body, both "the beginning of plowing" (rain giving birth to the hundred grains, sowing) and "the beginning of mulberry" (the hoopoe descending upon the mulberry, silkworm-rearing beginning). It reminds those who govern: this rain of late spring must both coax forth the grain to nourish the people's "food," and protect the mulberry to prepare the people's "clothing"—only when plowing and mulberry-tending proceed together is the Way of "nurturing the people" complete.

Section 4: The Covenant Between Heaven and Humanity in Farming — Human Affairs Must Accord with Heaven's Timing

The farming of Guyu is, at its root, a precise coordination of "human affairs" with "Heaven's timing," the fulfillment of a "covenant between Heaven and humanity."

Heaven provides "rain" (timely rain) and "warmth" (frost's cessation)—this is Heaven's portion; humanity must, in a timely manner, "sow," "transplant," and "tend"—this is humanity's portion. If Heaven does not send down timely rain, then however diligent humanity may be, there will be no harvest; if humanity misses the farming season, then however much rain Heaven may send down, it will be in vain.

Only when Heaven and humanity each fulfill their own portion, precisely coordinated—Heaven sending down timely rain at its proper moment, humanity sowing the grain at its proper moment—can "rain giving birth to the hundred grains" truly be realized. And so the farming of Guyu is the most typical instance of "cooperation between Heaven and humanity": it relies neither purely on Heaven (sitting idle and awaiting Heaven's grace), nor purely on humanity (humanity conquering Heaven), but rather on humanity according with Heaven's timing while exhausting human effort, Heaven and humanity joining together to accomplish their shared task.

This is precisely the plainest, most solid foundation of Chinese agrarian civilization's cosmology of "the unity of Heaven and humanity." Every time the ancients bent down to sow seed in the fields at Guyu, they were fulfilling an ancient "covenant between Heaven and humanity": since Heaven has already sent down its timely rain and withdrawn the cold frost, I must in turn, in a timely manner, entrust the seed to this soil that Heaven's grace has already moistened. In this single act of bending down, of sowing seed, humanity and Heaven complete, in the soil of Guyu, the most affectionate and most practical handshake of the entire year.

Chapter 12: A Special Chapter on the Origin of Writing — Cangjie's Invention of Writing and "Heaven Rained Down Millet, and Ghosts Wept in the Night"

Section 1: A Strange Legend — Why Does Guyu Sacrifice to Cangjie$2

Among all the cultural meanings of Guyu, one connection is the most strange, and also the most profound—the link between Guyu and Cangjie's invention of writing. Later tradition holds that on the day Cangjie invented writing, "Heaven rained down millet, and ghosts wept in the night"; and folk custom, in turn, takes Guyu as the day for sacrificing to Cangjie. The very origin of writing came to be bound together with "raining millet," with "Guyu." What a marvelous cultural affinity this is!

The core textual source for this connection is that startling record in the "Basic Warp" chapter of the Huainanzi: "Of old, when Cangjie invented writing, Heaven rained down millet, and ghosts wept in the night." (昔者仓颉作书，而天雨粟，鬼夜哭。) Long ago, when Cangjie created writing, millet rained down from the sky (as if it were rain), and spirits wept in the night.

These few characters strike with startling force. Cangjie's invention of writing was, in itself, a human cultural achievement—why should it have moved Heaven itself, causing Heaven to "rain millet"; why should it have stirred the underworld, causing ghosts to "weep in the night"$3 And why did later generations link this miracle of "Heaven raining millet" precisely to the late-spring Guyu of "rain giving birth to the hundred grains," designating it as the day for sacrificing to Cangjie$4 To unravel this chain of mysteries, we must begin with the profound meaning behind the two images of "Heaven raining millet" and "ghosts weeping in the night."

Section 2: "Heaven Rained Down Millet" — The Hidden Resonance Between the Origin of Writing and the Descent of Grain

Let us first consider "Heaven rained down millet." Why would millet (grain) rain down from the sky at Cangjie's invention of writing$5

Various explanations have been offered through the ages, and among them, the most profound touches upon the fundamental relationship between writing and civilization. Writing is one of humanity's greatest inventions—it enables experience to be recorded, knowledge to be accumulated, and civilization to be transmitted. Before the appearance of writing, human wisdom arose and vanished with each generation, unable to be carried across time and space; but once writing appeared, the farming methods, seasonal knowledge, and agricultural techniques of earlier generations could be recorded and passed on to later generations. In other words, writing greatly advanced every civilizational enterprise, agriculture included.

In this sense, the birth of writing was, like grain raining down from the sky, an immense gift to human survival—"Heaven rained down millet" celebrates, through this plainest and most precious image of "grain descending," the birth of writing's great grace to human civilization, comparable to the grace of "bestowing food."

And this forms, precisely, a striking resonance with Guyu's "rain giving birth to the hundred grains." Guyu's rain coaxes forth the "hundred grains" in the fields—the material grain that nourishes the human body; Cangjie's "Heaven rained down millet" at the invention of writing sends down the "millet" of civilization—the spiritual grain that nourishes the human mind. One rains "grain" to nourish the body; the other rains "millet" to nourish the mind; one is the humaneness of Heaven and Earth's nurturing, the other the achievement of civilization's founding.

That the ancients bound Cangjie together with Guyu was by no means an arbitrary, forced association, but arose from a profound intuition: the material "raining of grain" (Guyu) and the spiritual "raining of millet" (the invention of writing) are one and the same great grace—"Heaven descending to nourish humanity"—corresponding to each other on the material and spiritual levels respectively. That Guyu sacrifices to Cangjie is a way of celebrating, within one and the same season, one and the same image of "rained-down grain," both the grain that Heaven and Earth nurture the body with and the writing that civilization nurtures the mind with.

Section 3: "Ghosts Wept in the Night" — How Could Writing Startle Heaven and Earth and Bring Spirits to Tears$6

Now let us turn to "ghosts wept in the night." Why would the spirits of the underworld weep in the night at Cangjie's invention of writing$7

This image is more obscure still, and explanations have long varied, though all point toward the immense power of writing to "startle Heaven and Earth, bring spirits to tears." One explanation holds: once writing appeared, the secrets of Heaven and Earth, the laws of nature, could all potentially be recorded, uncovered, and mastered by humanity; the workings of creation could no longer remain entirely hidden, and so the spirits (who preside over the hidden and obscure) wept in fear on its account—humanity had, from this point on, a "sharp instrument" capable of glimpsing Heaven's secrets and recording the ten thousand phenomena.

Another explanation carries a reflection on civilization itself: though writing is civilization's sharp instrument, it may also become a source of cunning deceit, strife, and calculation—with writing came contracts, came scheming, came disputes of right and wrong, came mutual deception; humanity's simple, natural age of "namelessness" was, from that point on, gone forever, and so the spirits wept for humanity's imminent farewell to innocence and its entry into cunning artifice.

This second explanation resonates especially deeply with Daoist reflection. The Most High says: "The five colors blind the eye... goods that are hard to obtain hinder one's conduct." He also advocates "abandoning sagacity and discarding wisdom, that the people may benefit a hundredfold," and yearns for a simple age of "a small state with few people," "letting the people again use knotted cords for record-keeping." In Daoist eyes, the flourishing of writing and cunning wisdom, while certainly bringing civilization, also brought a departure from natural innocence.

"Ghosts wept in the night" may well be a deep sigh uttered by Heaven and Earth at humanity's imminent farewell to the simplicity of "governing by knotted cords" and its entry into an age of cunning artifice, of "grinding against one another through writing." Writing is both a blessing and a sorrow; it is both the beginning of civilization and the end of innocence—the joy of "Heaven rained down millet" and the sorrow of "ghosts wept in the night" are precisely the two faces of this single coin, civilization.

Section 4: Fu Xi, Cangjie, and "Writing and Tallies" — The High-Antiquity Genealogy of the Origin of Writing

Let us broaden our view further: Cangjie's invention of writing is not an isolated legend, but a crucial link in the high-antiquity genealogy of "the origin of writing." And this genealogy connects, from afar, precisely with the sovereign matched with Guyu—Great Hao Fu Xi.

The "Appended Statements, Part II" of the Book of Changes records the origin of writing (shuqi, writing and tallies): "In high antiquity, government was carried out by means of knotted cords; the sages of later ages replaced this with writing and tallies, by which the hundred officials could govern their affairs and the myriad people could examine and verify matters." (上古结绳而治，后世圣人易之以书契，百官以治，万民以察。) In high antiquity, affairs were recorded through knotted cords, and governance was conducted by this means; the sages of later ages replaced this with "writing and tallies" (written inscriptions), enabling the hundred officials to govern their affairs and the myriad people to examine and verify matters. This passage clearly sketches the civilizational leap from "knotted cords" to "writing and tallies"—and this very leap is the great moment that the legend of Cangjie's invention of writing commemorates.

And when the "Appended Statements, Part II" discusses the achievements of the high-antiquity sage kings, it traces the origin of "drawing the Eight Trigrams" and "inventing writing and tallies" back to Fu Xi (Great Hao): "In ancient times, when Baoxi (Fu Xi) ruled the world... he first drew the Eight Trigrams, in order to penetrate the virtue of the spirits and gods, and to classify the conditions of the ten thousand things." Fu Xi's drawing of the Eight Trigrams—this use of "symbols" to "penetrate the virtue of the spirits and gods, and classify the conditions of the ten thousand things"—may be regarded as the living wellspring of the spirit of "writing." The Eight Trigrams are the most ancient "system of symbols," and writing is a still more precise "system of symbols"; the two share a single lineage, both being humanity's great endeavor to grasp the world and transmit wisdom through "symbols."

And so a profound thread emerges: Guyu is matched with Great Hao Fu Xi (the sovereign of the third month of spring); Fu Xi first drew the Eight Trigrams (the source of symbols); later generations, through Cangjie, carried this forward and invented writing and tallies (the accomplishment of writing); and Cangjie's invention of writing carried the auspicious sign of "Heaven raining millet," and was bound to the solar term of "Guyu." From Fu Xi's Eight Trigrams, to Cangjie's writing, to Guyu's "rained millet"—symbol, writing, and solar term converge, marvelously, at this late-spring point of Guyu, into a single chain of "civilization's founding" running through high antiquity. Guyu, therefore, is not merely an agricultural solar term, but has become a spiritual festival by which Chinese civilization commemorates "the origin of writing."

Section 5: Writing and Heaven and Earth — Why Must the Origin of Writing Be Matched with a Rain$8

Finally, let us return to that most fundamental question: why did the ancients match "the origin of writing" with a "rain"—and precisely with this rain of Guyu, "rain giving birth to the hundred grains"$9

Concealed behind this is the ancients' deepest apprehension of the essential nature of "writing." In the ancients' view, writing was not invented by humanity out of nothing, but was distilled and traced by Cangjie from the "patterns" (wen) of Heaven and Earth and the ten thousand things—"gazing up to observe the curved and circling configurations of the Kui constellation, and looking down to examine the patterns of the tortoise shell, the tracks of birds, the mountains and rivers, and the lines of the palm and fingers."

The original meaning of the character "wen" (文) is precisely "pattern" or "vein-marking"—Heaven has its celestial patterns (the markings of sun, moon, and stars), Earth has its terrestrial patterns (the markings of mountains, rivers, grasses, and trees), birds have their tracks, tortoises have their shell-markings; what Cangjie did was to trace and distill the patterns already inherent in Heaven, Earth, and the ten thousand things into "writing" usable by the human world. In other words, writing is the projection and transcription, within the human world, of Heaven and Earth's own "pattern."

Given this, it becomes only natural that the origin of writing should be matched with a rain—for rain is precisely the most direct medium of Heaven and Earth's nurturing, of Heaven and humanity's communication. Heaven "gives birth to the hundred grains" through rain, nourishing the human body; Heaven also, through Cangjie's hand, transcribes the "pattern" of Heaven and Earth into writing (descending like "rained millet"), nourishing the human mind. Rain giving birth to the hundred grains, and writing giving birth to the hundred forms of wisdom, are the simultaneous unfolding, on the material and spiritual ends, of one and the same humaneness of Heaven and Earth's nurturing.

To bind the origin of writing to Guyu, the solar term of "rain giving birth to the hundred grains," is precisely the ancients' most poetic, most profound way of proclaiming a conviction: writing is another kind of "grain" that Heaven and Earth send down to humanity; civilization is another instance of "rain giving birth to the hundred grains," a nurturing between Heaven and humanity. A single Guyu both moistens the five grains in the fields and nourishes civilization in the human world—body and mind, grain and writing, farming and writing, are thoroughly threaded together into one, within this single rain of late spring.

Chapter 13: Guyu and the Cultivation of Body and Mind — The Way of Nourishing Life and Nourishing Virtue in Late Spring

Section 1: "The End of Nourishing Life, the Beginning of Nourishing Growth" — Guyu's State of Body and Mind

Guyu stands at the meeting of spring and summer, and its way of nourishing life likewise stands within a subtle "transition"—it is both the conclusion of spring's "nourishing life" (nourishing the qi of sprouting and growth) and the prelude to summer's "nourishing growth" (nourishing the qi of flourishing growth).

Though the "Great Treatise on Regulating the Spirit in Accordance with the Four Seasons," in the "Basic Questions" section of the Yellow Emperor's Inner Canon (Huangdi Neijing), was compiled by physicians of later ages, its thought of "regulating the spirit according to the four seasons" is deeply rooted in the pre-Qin tradition of "nourishing life in accordance with the seasons," sharing a single lineage with the Monthly Ordinances.

Its discussion of nourishing life in spring's three months says: "In the three months of spring, this is called putting forth the old to make way for the new; Heaven and Earth together give birth, and the ten thousand things flourish. One should retire late and rise early, walk broadly in the courtyard, let the hair hang loose and the body relax, so as to allow the will to sprout forth... this accords with spring's qi, and is the way of nourishing life." The three months of spring are the season of casting off the old and bringing forth the new, when Heaven and Earth give birth together and the ten thousand things flourish; one should go to bed late and rise early, walk leisurely in the courtyard, let the hair hang loose and the body relax, so as to allow the will and intent to sprout forth freely... this is the way of nourishing life that accords with spring's qi, preserving the "qi of sprouting and growth."

Guyu, as the final month of spring's three months, is precisely the closing moment of this "way of nourishing life." The key point of nourishing life at this time lies in "allowing the will to sprout forth"—keeping the will and intent in that state of sprouting, unfolding, and flourishing vitality, just like the ten thousand things outside the window, "the curled things all emerging, the sprouting things all extending"—unfolding without repression, sprouting without obstruction. At the same time, because Guyu already approaches summer, with the yang qi about to grow abundant, one must also prepare for the "nourishing growth" of the summer soon to come—gradually allowing body and mind to adapt to that yet more vigorous, more outward-radiating rhythm of yang.

Section 2: The Most High's "Clarity and Stillness" and the Nourishment of Guyu

As Guyu's yang qi grows abundant and the ten thousand things surge with vitality, the human spirit, too, tends to grow excited and outward-turned along with them. At such a time, the Daoist teaching of "clarity and stillness" is precisely a fitting remedy for nourishing life.

The Most High says: "Clarity and stillness set the world aright." (Daodejing, Chapter 45) And also: "Attain the utmost emptiness; hold fast to stillness with utter sincerity." (Chapter 16) At the season of Guyu, when the yang qi is about to reach fullness and vitality is at its most vigorous, why should one speak, instead, of "clarity and stillness," of "holding fast to stillness"$10 This is precisely an expression of Daoist dialectical wisdom—the more the outer world surges and clamors, the more one must hold fast to inner clarity and stillness; the more the yang qi grows excited and outward-turned, the more one must nourish and balance it through "stillness," so that it does not exhaust itself through excess and cause harm.

Consider the season of Guyu: the ten thousand things vying in flourishing splendor, the cuckoo urging the plowing, the work of silkworms about to flourish—everywhere a scene of busy clamor. If a person, too, follows this and grows excited and scattered outward without restraint, the spirit easily grows agitated and dissipated. The Most High's teaching of "clarity and stillness," "holding fast to stillness," teaches people precisely to hold fast, amid this outer clamor, to an inner tranquility and empty clarity—the body may be busy in accordance with the farming season, but the heart must preserve a pool of clarity and stillness even amid the busyness.

This "stillness within motion," this "leisure within busyness," can both avoid the agitation and depletion caused by yang qi's excess, and, even as the ten thousand things radiate outward, nourish in the opposite direction that inner, deep steadfastness of life. Guyu's nourishment must, beyond "nourishing the yang of sprouting and growth," also take the "yin of clarity and stillness" as its root and foundation—one yin, one yang, motion and stillness mutually completing each other—only thus is the way of nourishing life in late spring made complete.

Section 3: Master Zhuang's "Fasting of the Mind" and the Cleansing of the Spirit in Late Spring

The rain of Guyu washes and cleanses the ten thousand things, making Heaven and Earth fresh and clear. And on the level of the spirit, Master Zhuang's teaching of "the fasting of the mind" is precisely an "inner Guyu"—a rain that cleanses the spirit.

The "Human World" chapter of the Zhuangzi discusses "the fasting of the mind" through the mouth of Confucius: "Unify your will. Do not listen with your ears, but listen with your mind; do not listen with your mind, but listen with your qi. The function of the ear stops at hearing; the function of the mind stops at responding to external things. But qi is empty, and awaits things receptively. Only the Dao gathers within this emptiness. This emptiness is the fasting of the mind." Unify the will and intent; rather than listening with the ears, listen with the mind; rather than listening with the mind, listen with the qi. The ear's function stops at hearing; the mind's function stops at corresponding to outer things. But qi is empty and bright, and can receive and contain the ten thousand things. Only the Dao gathers within this empty brightness. This state of empty, bright stillness is called "the fasting of the mind."

"The fasting of the mind" is a "fast" and a "cleansing" of the spirit—clearing away, one by one, the various attachments, preconceptions, and agitations of ear, eye, and calculating mind, returning the spirit to that empty, bright state of "emptiness awaiting things receptively." How similar this is to Guyu's rain, which cleanses Heaven and Earth and makes the ten thousand things fresh! Guyu's rain washes away the outer dust; Master Zhuang's "fasting of the mind" washes away the inner grime.

At this season of Guyu, when the ten thousand things are made fresh through rain, to undertake the work of "fasting the mind"—cleansing away, like Guyu washing away the dust, the accumulated distracting thoughts, cunning calculations, and agitations of the heart, returning the spirit to empty, bright stillness—this is the highest revelation that Guyu offers for the cultivation of body and mind. Outwardly, Guyu's rain moistens things, washes away dust, and coaxes forth life; inwardly, the fasting of the mind cleanses distracting thoughts, attains emptiness, and awaits the Dao—inner and outer nourishing each other, body and mind both made new—only thus does one do justice to this fine, clear, moistening rain of late spring.

Section 4: Restraint and Preserving Proper Measure — The Way of Balance and Harmony at the Height of Guyu's Yang

As Guyu's yang qi grows abundant and vitality reaches its peak, this is precisely the season most prone to "excess"—emotions easily grow overexcited, daily rhythms easily grow overtaxed, desires easily grow overextended. At such a time, the Confucian teaching of "balance and harmony," of "moderation and proper measure," connects directly with the admonition against "overflowing fullness" from hexagram Guai discussed earlier.

The "Doctrine of the Mean" (Zhongyong) chapter of the Book of Rites says: "Before joy, anger, sorrow, and pleasure are aroused, this is called balance (zhong); once aroused, and all in due measure, this is called harmony (he). Balance is the great root of the world; harmony is the far-reaching Way of the world. When balance and harmony are attained, Heaven and Earth take their proper places, and the ten thousand things are nurtured." Before joy, anger, sorrow, and pleasure are stirred, this is called "balance"; once stirred, and all according with proper measure, this is called "harmony." Balance is the great root of the world; harmony is the far-reaching Way of the world. When balance and harmony are attained, Heaven and Earth each settle into their proper place, and the ten thousand things are nurtured and flourish accordingly.

Note well the final line, "when balance and harmony are attained... the ten thousand things are nurtured"—only when balance and harmony are attained can the ten thousand things be nurtured and flourish. This resonates, from afar, with the character "nurture" in Guyu's "rain giving birth to the hundred grains." The very reason Heaven and Earth can "nurture" the hundred grains at Guyu is that yin and yang are in harmony, rain and sunshine each attain their proper balance (rain and clear skies arriving in exactly the right measure); if a person wishes, at Guyu, to "nurture" their own body and mind, they likewise must seek this same "balance and harmony"—emotions stirred yet within proper measure, desires extended yet within proper bounds, labor undertaken yet balanced with rest.

At Guyu, when the yang qi is about to reach fullness and is most prone to excess, to hold fast to this "balance and harmony," not allowing the yang qi to exhaust itself through excess and cause harm, is precisely the highest state of nourishing life. This is likewise the concrete realization, in the practice of nourishing life, of hexagram Guai's teaching of "resolving yet remaining harmonious" and "the noble person, resolutely, resolutely firm, yet wary and cautious"—flourishing without excess, advancing with proper measure, fullness accompanied by humility—only thus can one, like Heaven and Earth "attaining balance and harmony," nurture and sustain vitality for the long term.

Chapter 14: The Rites of Guyu — The Sacrifice to Cangjie and the Rite of the First Sericulturist

Section 1: The Original Meaning of Ritual — A Solemn Intercourse Between Heaven and Humanity

Before delving into the specific rites of Guyu, we must first clarify the original meaning of "ritual propriety" (li). Ritual is by no means mere elaborate formality, but rather a solemn and dignified "manner of intercourse" between the ancients and Heaven and Earth, the spirits, and the ancestors.

The "Ceremonial Usages" chapter of the Book of Rites says: "The beginning of ritual lay in food and drink offering food in sacrifice... ritual is performed in the outer suburbs, and thereby the hundred spirits each receive their offices." The origin of ritual began with food and drink (offering food in sacrifice)... ritual is performed in the outer suburbs, and thus the hundred spirits each receive their proper offices. And the "Meaning of Sacrifices" chapter of the Book of Rites speaks of the sincerity of sacrifice: "On the day of fasting, one thinks of the one sacrificed to—of their dwelling, their laughter and speech, their aims and intentions, what brought them joy, and what they relished." On the day of fasting, one must think of the dwelling place, the laughter and speech, the aims and intentions, the joys, and the tastes of the one being sacrificed to.

From this we see that the core of ritual lies in the single word "sincerity," the single word "reverence"—engaging in intercourse with Heaven, Earth, the spirits, and the ancestors with the most devout, most reverent heart.

The rites of Guyu are chiefly two: first, the sacrifice to Cangjie (commemorating the origin of writing); second, the sacrifice to the First Sericulturist and the performance of the rite of personal sericulture (praying for an abundant harvest of mulberry and silk). These two ritual systems, one bearing on "writing" (civilization), the other on "clothing" (sericulture), correspond precisely to Guyu's two great themes of "rained millet (writing)" and "the descent upon the mulberry (silkworm-rearing)," giving concrete realization, in the most solemn form, to Guyu's cultural meaning as an intercourse between Heaven and humanity.

Section 2: Sacrificing to Cangjie — Honoring the Origin of Writing

The sacrifice to Cangjie at Guyu is a ritual custom formed in later ages, laden with profound meaning. It solemnly situates the reverence for "the origin of writing" within this late-spring solar term of "rain giving birth to the hundred grains."

Why sacrifice to Cangjie$11 Because, in the hearts of the ancients, writing was a great creation capable of "startling Heaven and Earth and bringing spirits to tears" ("Heaven rained down millet, and ghosts wept in the night"). Cangjie, as the creator (or great consolidator) of writing, achieved merit comparable to that of Shennong, who taught the people to farm, or Suiren, who drilled wood to make fire—he gave humanity an entirely new instrument, sufficient to carry civilization forward through the ages. For such a founder of civilization, the ancients naturally offered solemn sacrificial rites in commemoration and gratitude.

And as to why the day of sacrifice to Cangjie was set at Guyu, we have already discussed at length above the profound meaning behind this—Guyu's "rain giving birth to the hundred grains" (the grain that nourishes the body) and Cangjie's "Heaven rained down millet" (the writing that nourishes the mind) resonate with one another as one and the same "Heaven descending to nourish humanity." Thus, sacrificing to Cangjie at Guyu is, at its essence, a way of celebrating, within a single season of "rained-down grain," the double nurturing that Heaven and Earth and the sage together bestow upon humanity: Heaven nourishing the human body through rain that brings forth the hundred grains, and Cangjie nourishing the human mind through writing that transmits civilization.

On this day, the farmer gives thanks for the grain sent down by Heaven, and the scholar gives thanks for the writing created by the sage, and the two merge together, thoroughly, within a single solar term, a single gratitude. One solar term belongs both to the farmer in the field and to the scholar at his desk—this is precisely the solemn unity of agrarian civilization and written civilization that the sacrifice to Cangjie at Guyu accomplishes.

Section 3: The Sacrifice to the First Sericulturist and the Rite of Personal Sericulture — Praying for an Abundance of Clothing

The other great pillar of Guyu's rites is the sacrifice to the First Sericulturist and the performance of the rite of personal sericulture. We have already touched on this in outline in our discussion of "the hoopoe descends upon the mulberry"; here let us examine more deeply its ritual structure and spirit.

"The First Sericulturist" (Xiancan) is the silkworm spirit who first taught the people to rear silkworms (according to legend, perhaps Leizu of the Xiling clan). Around the time of Guyu, the queen consort, leading the ranks of noble ladies both within and beyond the court, fasts and purifies herself, sacrifices to the First Sericulturist, and then personally performs the rite of gathering mulberry leaves (personal sericulture), so as to encourage the work of silkworms throughout the realm. The "Monthly Ordinances" of the Book of Rites, in its account of the third month of spring—"the queen consort fasts and purifies herself, and faces east to gather mulberry leaves with her own hands"—is precisely the pre-Qin record of this ritual system.

This ritual system of "the First Sericulturist—personal sericulture—gathering mulberry leaves in person" corresponds precisely, and complements exactly, in structure and spirit, the Son of Heaven's ritual of "the First Farmer—personal plowing—the sacred field":

The Son of Heaven sacrifices to the First Farmer and personally plows the sacred field, giving weight to "grain" (food); the queen consort sacrifices to the First Sericulturist and personally gathers mulberry leaves, giving weight to "mulberry" (clothing). One is male, the other female; one presides over food, the other over clothing; one is performed in the southern suburbs (the sacred field), the other in the inner gardens (the sericulture chambers)—together they constitute the sacred demonstration, at the very highest level of the state, of "men plow, women weave." Their spirit is to proclaim to the entire realm: plowing and mulberry-tending, food and clothing, are the two foundations upon which the state is established, matters in which even the sovereign and his consort must personally take part, not daring to treat them lightly.

Guyu happens to be precisely the solar term at which both "plowing" and "mulberry" begin together—"rain giving birth to the hundred grains" is the beginning of plowing, "the hoopoe descends upon the mulberry" is the beginning of mulberry-tending. And so, at the season of Guyu, the Son of Heaven may personally plow to give weight to grain, and the queen consort may personally gather mulberry to give weight to silkworms, the two rites proceeding side by side, presenting, in the most solemn ritual form, the complete dual foundation of Guyu's equal emphasis on "food and clothing." This is a perfect, fourfold convergence of solar term, phenology, farm work, and ritual system.

Section 4: The Rite of Welcoming the Qi — The Third Month of Spring as the Prelude to "Welcoming Summer"

The rites of Guyu must also be understood within the larger framework of "welcoming the qi of the four seasons."

The "Monthly Ordinances" of the Book of Rites records that, at the beginning of each of the four seasons, the Son of Heaven must lead his assembled ministers out to the suburbs to "welcome the qi": at Start of Spring, welcoming spring in the eastern suburbs (the east belonging to Wood); at Start of Summer, welcoming summer in the southern suburbs (the south belonging to Fire); at Start of Autumn, welcoming autumn in the western suburbs (the west belonging to Metal); at Start of Winter, welcoming winter in the northern suburbs (the north belonging to Water). This rite of "welcoming the qi in the four suburbs" strictly follows the directional positions of the Five Phases, and is a great state ceremony by which the Son of Heaven accords with Heaven's timing and communicates between Heaven and humanity.

Though Guyu is not among "the four beginnings" (it does not directly correspond to a great ceremony of welcoming the qi), it stands within late spring, at the transitional moment when the qi of "welcoming spring" (Wood's virtue in the eastern suburbs) is about to reach its fulfillment, and the rite of "welcoming summer" (Fire's virtue in the southern suburbs) is soon to arrive. One might say that Guyu is both the lingering echo and the closing note of "spring's welcoming of qi," and the gestation and prelude of "summer's welcoming of qi."

In this sense, the rites of Guyu (sacrificing to Cangjie, sacrificing to the First Sericulturist) constitute, within the closing notes of spring's welcoming of qi, a final act of reverence and gratitude toward spring; and once it has passed, Start of Summer follows immediately, and the Son of Heaven must lead his ministers to the southern suburbs to "welcome summer," inaugurating the great rites of high summer under Fire's presiding virtue. The rites of Guyu thus become the ritual pivot linking "the ritual of spring under Wood's virtue" to "the ritual of summer under Fire's virtue," carrying forward what came before while opening what follows—in the final hours of late spring, it calmly completes its farewell to spring, while quietly preparing to welcome summer.

Chapter 15: The Literary World of Guyu — Rain, Grain, and Mulberry in the Book of Songs and the Songs of Chu

Section 1: Rain in the Book of Songs — From Praying for Rain to Praising Rain

Rain is an image that recurs throughout the Book of Songs, laden with feeling, and the core of this feeling resonates precisely with Guyu's theme of "rain giving birth to the hundred grains"—the longing for and gratitude toward timely rain.

We have already cited, from "Da Tian" in the "Lesser Odes": "The clouds gather thick and heavy; the rain comes gently, gently. May it fall first upon our lord's fields, and then extend to our own." Thick clouds gather, gentle rain descends slowly, moistening first the public fields, then extending to the private fields. This is a heartfelt tribute to timely rain, offered when a bountiful harvest is in prospect. The character "rain" in "may it fall... upon our lord's fields" is used as a verb, capturing with utter vividness that sense of grace in rain "actively moistening the fields." This is precisely the image that Guyu's rain holds in the farmer's heart—not indifferent weather, but Heaven's grace, actively moistening the fields out of favor toward humanity.

The Book of Songs also contains a great deal of sentiment expressing "prayer for rain." The ancients' attitude toward rain was one interwoven of longing and awe—hoping it would arrive in time (moistening the fields, bringing forth grain), yet fearing it might come late or fall violently (bringing drought or flood as calamity). This complex feeling reflects precisely the true psychology of agrarian civilization toward "rain," a matter of life and death. And Guyu's rain is precisely that kind of "timely rain" the ancients most longed for—arriving exactly at the right time, in exactly the right measure, moistening things and bringing forth grain without becoming a calamity. Those verses of prayer for rain and praise of rain in the Book of Songs may be regarded as the most ancient, most heartfelt hymns the ancients ever wrote for the rain of Guyu.

Section 2: Mulberry in the Book of Songs — A Collective Portrait of Mulberry-Gathering Maidens in Late Spring

Mulberry, and the gathering of mulberry leaves, form yet another cluster of images in the Book of Songs intimately bound to Guyu, sketching moving collective portraits of mulberry-gathering maidens in late spring.

We have already cited, from "Qiyue" in the "Odes of Bin," "the maidens take up their deep baskets... seeking the tender mulberry leaves," and from "Shi Mu Zhi Jian" in the "Odes of Wei," "the mulberry-gatherers move at ease." Beyond these, there are many more passages in the Book of Songs that take mulberry as their opening image or describe the matter of mulberry-gathering. For instance, "Meng" ("The Simple Peasant") in the "Odes of Wei" (Bei-Yong-Wei group): "Before the mulberry leaves fall, how lush and glossy they are... Now the mulberry leaves have fallen, turned yellow and dropped." Here the mulberry leaves' passage from lush abundance to withered decline serves as a metaphor for the woman's changing beauty and feelings. Though the mulberry here functions as figurative and evocative imagery, it also reveals just how commonplace the work of mulberry-gathering was in the ancients' daily life, how familiar they were with the mulberry tree—the mulberry was an everyday object they faced day after day, one upon which they placed their deepest feelings.

These poems of mulberry-gathering and mulberry-praising fix the sericulture and women's work of the Guyu season as an eternal theme in Chinese literature, full of human warmth. The countless later poems and song lyrics with titles like "Gathering Mulberry," "Mulberry by the Path," and "Picking-Mulberry Lyric" trace their living wellspring precisely to these scenes of late-spring mulberry recorded in the Book of Songs. A single small mulberry leaf, once sung of in the Book of Songs, comes to bear endless meaning—labor, youth, sentiment, the passing of years—and the seasonal backdrop for all of this is precisely late spring at Guyu, when "the hoopoe descends upon the mulberry," the mulberry leaves are first gathered, and the work of silkworms just begins to flourish.

Section 3: Fragrance in the Songs of Chu — Late-Spring Herbs and a Lament for Time

If the rain and mulberry of the Book of Songs express the plain simplicity of northern farming life, then late spring in the Songs of Chu (Chuci) carries an altogether different, southern fragrance and subtle sentiment.

The late spring depicted by Master Qu (Qu Yuan) is a world of luxuriant fragrant herbs, on the very verge of fading. In the Li Sao, he repeatedly likens himself to fragrant herbs and expresses his feelings through them: "I wore the river-mallow and secluded angelica; I wove the autumn orchid into a girdle-pendant... at dawn I gathered the magnolia on the hillside; at dusk I plucked the evergreen herb on the islet." He drapes himself in river-mallow and white angelica, weaves autumn orchid into an ornament to wear... in the morning gathers the magnolia on the hillside, in the evening picks the evergreen herb (suzu) on the sandbar.

These fragrant plants, at late spring (around the time of Guyu), are at their most luxuriant, and also closest to the moment of "beginning to fade." Master Qu likens himself to these plants, flourishing yet on the verge of fading, expressing through them his own noble character, while also implying a profound anxiety over the passage of time and the imminent fading of youthful splendor.

Especially poignant is Master Qu's fear that "the fair one" would grow old before her time—in the Li Sao: "The sun and moon hasten on without pause; spring and autumn take their turns in succession. Thinking of how the grasses and trees wither and fall, I fear that the fair one a metaphor for the sovereign, or for himself will grow old before her time." The sun and moon fly past without ceasing; spring departs and autumn arrives, each taking its turn; thinking of the withering and falling of grasses and trees, he fears that the fair one (a metaphor for the sovereign or for himself) will age prematurely. Late spring is precisely the turning moment when "spring is about to give way to its successor," when grasses and trees are about to turn from flourishing to decline—the moment most likely to stir this lament for "growing old before one's time." Guyu, standing within late spring, when the blossoms are about to end and spring's affairs are about to draw to a close, is precisely the typical season that gives rise to Master Qu's anxiety over "the fair one growing old before her time," over "time waiting for no one."

Section 4: The Image of Late Spring — From "Lamenting Spring" to "Cherishing Time," a Literary Motif

Guyu stands within late spring, and this quality of "spring about to end" makes it an important seasonal anchor for the eternal literary motifs of later ages—"lamenting spring," "cherishing spring," "cherishing time."

Why does late spring most readily give rise to this sentiment of "lamenting spring, cherishing time"$12 Because late spring is both the peak of splendor and the starting point at which that splendor begins to fade—when blossoms reach their fullest bloom, they are about to wither; when spring reaches its richest depth, it is about to pass away. This liminal moment of "flourishing at its height, about to decline" most readily stirs the profound sigh over how easily beauty fades and how difficult it is to hold time still. Master Qu's fear, discussed above, that "the fair one" would "grow old before her time," is precisely one of the earliest and most profound sources of this motif.

Yet it is worth noting that the late spring of Guyu does not carry only the negative aspect of "lamenting spring." It is, at the same time, the season of "rain giving birth to the hundred grains," of vitality at its most vigorous, of sowing at its busiest, a season of forward striving. And so the sentiment of late spring that Guyu carries truly has two faces: on one side, the literati's "lamenting spring, cherishing time"—sighing over the imminent end of splendor, the easy passing of time (as in Master Qu's anxiety); on the other, the farmer's "seizing the season, striving forward"—grasping the heaven-sent moment of rain giving birth to the hundred grains, striving to sow and tend the mulberry and silkworms (as in the diligence of "The Seventh Month").

These two faces—the sigh of cherishing time, and the diligence of seizing the season—appear opposed, yet are in fact complementary: it is precisely because one deeply knows how easily time passes (cherishing time) that one must all the more seize the present moment and strive with full effort (seizing the season). The literary world of Guyu thus encompasses, at once, Master Qu's sigh beside the river and the mulberry-gathering maiden's song in the fields, portraying, to the fullest, the complex sentiment of late spring, interwoven of "about to end" and "at its height."

Chapter 16: The Mythic World of Guyu — Cangjie, the Hoopoe, and the Queen Mother of the West

Section 1: The Myth of Cangjie — Four Eyes and Double Pupils, "Peering into the Mysteries of Heaven and Earth"

The connection between Guyu and Cangjie has already been discussed at length in the special chapter on the origin of writing. Here let us look, from the perspective of "myth," at the marvelous character of Cangjie's own image.

In legend, Cangjie's appearance is extraordinarily marvelous—tradition holds that he was born with "four eyes," or with "double pupils." This mythic depiction of "four eyes" or "double pupils" is by no means an arbitrary flight of fancy, but a mythic expression of Cangjie's "extraordinary power of observation."

Writing arose from the observation and distillation of the "pattern" (the veins and markings) of Heaven, Earth, and the ten thousand things; and to distill writing out of the bewildering complexity of celestial phenomena, terrestrial features, bird tracks, and tortoise-shell markings required a pair (or even two pairs) of eyes beyond the ordinary, capable of discerning the "pattern" within all things. The account of "four eyes" is precisely a mythic exaggeration celebrating Cangjie's extraordinary power of observation, penetrating Heaven and Earth and discerning the ten thousand phenomena—as if he had grown extra eyes, in order to see the mystery of "pattern" hidden within all things, which ordinary people cannot see.

The deep connection between this myth and Guyu lies here: it once again confirms the conviction that "writing originates in observing Heaven and scrutinizing Earth." Cangjie's invention of writing through observing, with his "four eyes," the pattern of Heaven and Earth resonates precisely with the same spirit as the ancients' "gazing up and scrutinizing down" to fix the solar terms (such as using the gnomon and scale to measure the sun's shadow and determine Guyu)—both are the use of an extraordinary power of observation to grasp and transcribe the "pattern" and "rhythm" of Heaven, Earth, and the ten thousand things.

One observed celestial patterns in order to invent writing; the other observed celestial phenomena in order to fix the solar terms. Cangjie's "four eyes" and the discerning eyes of the ancients who observed the celestial signs to bestow the seasons are, at bottom, one and the same power of "reading the book of Heaven." Sacrificing to Cangjie at Guyu is, in a sense, also an act of reverence toward this great wisdom—one that gazes up and scrutinizes down, penetrating Heaven and Earth, uniting writing and calendrics.

Section 2: The Mythic Countenance of the Hoopoe — From Auspicious Bird to Emissary of the Queen Mother of the West

The hoopoe, of Guyu's third pentad, also holds an extraordinary identity in myth—it bears a mysterious connection with one of the most important goddesses of high antiquity, the Queen Mother of the West (Xiwangmu).

The "Classic of the Western Mountains" chapter of the Classic of Mountains and Seas records the image of the Queen Mother of the West: "The Queen Mother of the West's form is like a human's, yet she has a leopard's tail and a tiger's teeth, and is skilled at whistling; her hair is disheveled, and she wears a sheng; she presides over the calamities of Heaven and the five forms of destructive killing." The Queen Mother of the West's appearance is human-like, yet she has the tail of a leopard and the teeth of a tiger, and excels at a long whistling cry; her hair is disheveled, and she wears a "sheng" (a splendid headdress); she presides over Heaven's calamities and the five kinds of destructive, killing qi.

Note well these four characters, "disheveled hair, wearing a sheng"—the Queen Mother of the West wears a "sheng" upon her head, a splendid headdress! And the bird of Guyu's third pentad, the "daisheng" (hoopoe), takes its very name from the cluster of feathers atop its head, which can open like a crown, resembling the "sheng" worn by women. The bird's "wearing of the sheng" and the goddess's "wearing of the sheng" converge, marvelously, upon this single character "sheng."

The ancients may, on account of this shared name of "sheng," have come to regard the hoopoe as an auspicious bird associated with the Queen Mother of the West, or even as her emissary. An ordinary bird, alighting on the mulberry in late spring and announcing the season of silkworms, thus forged, through that single cluster of splendid feathers atop its head, a mythic bond with that great high-antiquity goddess of "disheveled hair, wearing the sheng," who presides over Heaven's calamities.

Section 3: The Hoopoe, Sericulture, and a Hidden Thread of Female Deities

Looking still more deeply into the connection between the hoopoe and the Queen Mother of the West, we find it faintly draws out a thread running through "woman—sericulture—deity," quietly according with Guyu's theme of mulberry and silk.

Guyu's third pentad, "the hoopoe descends upon the mulberry," announces the matter of women's work and sericulture—a domain originally led by women (gathering mulberry, rearing silkworms, reeling silk, weaving cloth were all the duties of women). And the hoopoe, the bird that announces the season of silkworms, is in turn linked, through the shared "sheng," to the Queen Mother of the West (a goddess). Furthermore, Leizu, the deity of "the First Sericulturist" said in legend to have first taught the people to rear silkworms, was likewise a woman (consort of the Yellow Sovereign).

And so we see that, surrounding Guyu's theme of mulberry and silk, there gathers a series of female figures: the mulberry-gathering maiden, the queen consort performing personal sericulture, Leizu the First Sericulturist, and the "sheng"-wearing Queen Mother of the West—the matter of mulberry and silk, from the mulberry-gathering maiden of the human world, to the deity of the First Sericulturist in sacrifice, to the mythic Queen Mother of the West, forms a single thread of "woman—sericulture" running through the three realms of humanity, ancestors, and spirits.

This is by no means accidental. Sericulture (the foundation of clothing) stands opposite farming (the foundation of food), just as yin stands opposite yang, woman opposite man, weaving opposite plowing. Within the civilizational structure of "men plow, women weave," sericulture naturally belongs to women, to the realm of "yin." And so, surrounding the myth and ritual system of Guyu's sericulture, one finds everywhere the figures of female deities and women—this is the profound projection, on the level of myth and ritual, of agrarian civilization's division of labor by gender.

This small pentad, "the hoopoe descends upon the mulberry," thus draws out an entire mythic realm, presided over by women, bearing upon the fundamental matter of human "clothing." The mythology of Guyu, then, holds not only Cangjie's vigorous, yang-natured "inventing writing, peering into Heaven," but also the yielding, capacious "nurturing clothing through sericulture" represented by the hoopoe, the Queen Mother of the West, and Leizu—one yang, one yin; one writing, one clothing—corresponding precisely to Guyu's dual theme of "rained millet (writing)" and "the descent upon the mulberry (silkworm-rearing)."

Section 4: The True Meaning of Myth — The Ancients' Poetic Memory of "the Origin of Civilization"

Looking back over the various myths of Guyu—Cangjie inventing writing, whereupon "Heaven rained down millet, and ghosts wept in the night"; the hoopoe descending upon the mulberry, linked with the Queen Mother of the West and Leizu—we must finally ask: what is the true meaning of these myths$13

Their true meaning lies in preserving, in poetic form, the ancients' collective memory of "the origin of civilization." The myth of Cangjie's invention of writing preserves the memory of the origin of "written civilization"—how humanity leapt from the simplicity of knotted cords into the pattern of writing and tallies. The myths of the hoopoe, Leizu, and the Queen Mother of the West preserve the memory of the origin of "sericultural civilization"—how humanity learned to rear silkworms, reel silk, and clothe the world. And these two great origins of civilization—writing and sericulture, pattern and clothing—converge, precisely, within this single solar term of Guyu (the writing of "rained millet," the clothing of "the descent upon the mulberry").

Thus, the mythic world of Guyu is, at its essence, a poetic monument to "the origin of civilization." It tells later generations: in that far-off high antiquity, it was Cangjie who gave us writing that could be transmitted through the ages; it was Leizu who gave us silk to cover our bodies. These two things—the wisdom of civilization and the warmth of clothing—are the two greatest gifts the ancients bestowed upon human survival.

And that the ancients, without prior agreement, bound the commemoration of these two gifts to this rain of late spring, Guyu's "rain giving birth to the hundred grains," is precisely meant to express a most profound conviction: whether it is the grain in the field, the clothing on the body, or the writing at one's desk, all are, at bottom, the joint nurturing—of human life and human civilization alike—by the humaneness of Heaven and Earth's nurturing and the achievement of the sages' creation. The mythology of Guyu is precisely the most ancient, most moving poetic expression of this conviction.

Chapter 17: Guyu and Musical Pitch — The Pitch-Pipe Guxian and the Sound of Late Spring

Section 1: The Twelve Pitch-Pipes and the Twelve Months — A Cosmology Uniting Pitch and Calendar

Within the pre-Qin cosmology of "the unity of Heaven and humanity," musical pitch and the calendar, sound and season, were held to correspond and resonate with one another—this is the ancient conception of "the unity of pitch and calendar." And the musical pitch corresponding to the third month (the chen month), in which Guyu falls, is "Guxian," one of the twelve pitch-pipes.

What are the twelve pitch-pipes$14 The ancients fixed twelve standard pitches within a single octave, namely: Huangzhong, Dalü, Taicu, Jiazhong, Guxian, Zhonglü, Ruibin, Linzhong, Yize, Nanlü, Wuyi, and Yingzhong. These twelve pitches, in turn, correspond one to one with the twelve months: Huangzhong matches the eleventh month (Winter Solstice), Dalü the twelfth month, Taicu the first month, Jiazhong the second month, and Guxian the third month, Zhonglü the fourth month, and so the cycle continues. Since Guyu falls in the third month, it is matched with the pitch-pipe Guxian.

Why should musical pitch correspond to the months$15 Behind this lies a profoundly deep conviction of the ancients: the movement of the qi of Heaven and Earth possesses a "rhythm," and this rhythm can be represented and measured through "musical pitch." In each month, the vibrational frequency of the qi of Heaven and Earth differs somewhat; and each pitch corresponds precisely to some particular vibrational frequency. The correspondence between months and pitches essentially unifies "the rhythm of time" with "the rhythm of sound"—in each different month, Heaven and Earth seem to sound forth a different "pitch." What the Heaven and Earth of the third month, Guyu, sound forth is precisely the note of "Guxian."

Section 2: The Meaning of "Guxian" — Washing the Ten Thousand Things, Cleansing and Renewal

The very name of this pitch, "Guxian," itself carries a meaning deeply consonant with Guyu.

"Xian" means to wash, to cleanse. The ancients, in explaining the name "Guxian," mostly took it to mean "washing the ten thousand things, making them clean and renewed"—by the third month, the ten thousand things, having been gestated through spring, ought now to wash away the lingering murkiness of winter and the dust of spring, becoming entirely new, in preparation for the flourishing abundance of the summer soon to come. And so the pitch "Guxian" symbolizes an atmosphere of "washing, cleansing, and renewal."

How perfectly this accords with the image of "rain" in Guyu! Guyu's rain is precisely a "washing of the ten thousand things"—it washes away dust, cleanses the grasses and trees, and makes Heaven and Earth fresh and clear. The "washing" of rain and the "washing" of Guxian converge, marvelously, on this very point of "cleansing and renewal." It is as though the Heaven and Earth of the third month, Guyu, wash the form of the ten thousand things with "rain," while also washing the sound of the ten thousand things with the pitch of "Guxian"—form and sound, rain and pitch, together accomplish that grand ceremony of "washing away the old, welcoming the new" in late spring.

Guyu's rain moistens and cleanses things; the pitch Guxian renews things in accordance with the season—one is visible, the other audible, yet both alike point toward that atmosphere of late spring, "washing away the old and welcoming the new." This is one of the most vivid instances of "the unity of pitch and calendar": the name of the solar term (Guyu's "rain") and the name of the pitch (Guxian's "washing") resonate so closely with one another in meaning.

Section 3: Why Should Music Correspond to the Seasons$16

We cannot help but ask: why did the ancients so firmly believe that music (musical pitch) corresponds to the seasons (the times)$17 Upon what foundation does this conviction of "the unity of pitch and calendar" rest$18

Its foundation lies in the ancients' apprehension of "qi." In the ancients' view, all things in the cosmos are composed of and threaded through by "qi." The movement of the qi of Heaven and Earth possesses its own rhythm (the cycle of the four seasons, the twelve months); and sound, too, is essentially a vibration of "qi" (whether blowing a pitch-pipe or plucking a zither, both produce sound by setting the air into motion).

Since the seasons are the rhythm of "qi," and sound is the vibration of "qi," the two can resonate with and correspond to one another—the qi of Heaven and Earth at any given season must resonate with the vibrational frequency of some particular pitch. This is the deepest philosophical foundation of "the unity of pitch and calendar": time and sound share a common origin in "qi," and therefore can communicate with one another.

Precisely for this reason, the ancients even developed the practice of "watching for the qi" (houqi)—according to legend, the twelve pitch-pipes were buried underground, filled with the ashes of reed membrane, and when a particular solar term arrived, the qi within the corresponding buried pitch-pipe would stir, causing the ashes to fly out, thereby "verifying" the arrival of the solar term.

Whatever the actual efficacy of this method of "watching for the qi," it vividly embodies the ancients' persistent conviction of "watching the qi through pitch, verifying the season through sound"—they firmly believed that each rhythmic transition in the qi of Heaven and Earth (such as the arrival of Guyu) would stir a resonant tremor in the corresponding pitch. Once the qi of the third month, Guyu, arrives, the pitch Guxian would seem to sound forth of its own accord, throughout Heaven and Earth, its note of "washing and renewal."

Section 4: Musical Pitch as a Medium of Communication Between Heaven and Humanity

Finally, the ultimate significance of musical pitch with respect to Guyu (and indeed to every solar term) lies in its being a sacred medium of "communication between Heaven and humanity."

The ancients' establishment of pitch-standards and use of music was by no means merely for entertainment. The "Record of Music" chapter of the Book of Rites says: "Music is the harmony of Heaven and Earth... the greatest music shares its harmony with Heaven and Earth." Music is a manifestation of the harmony of Heaven and Earth... the highest music shares the very same harmony as Heaven and Earth. It also says: "Music makes harmony more generous, guiding the spirits and according with Heaven." Music can deepen harmony and generosity, and can guide the spirits and gods while according with the Way of Heaven. In the ancients' view, music (music that accords with proper pitch) can "share its harmony with Heaven and Earth," can reach up to communicate with the spirits and gods, and reach down to accord with the Way of Heaven—it is the medium through which humanity "harmonizes" and "communicates" with Heaven, Earth, and the spirits.

Thus, at a season such as Guyu, to sound forth music that accords with the pitch of "Guxian" is not merely to produce a pleasing sound, but for humanity to actively use "sound" to respond to the "qi" of Heaven and Earth, to use "music" to harmonize the "concord" between Heaven and humanity. When the qi of the third month turns to Guxian, turns to "washing and renewal," if humanity sounds forth the pitch of Guxian, this is using human sound to respond to and participate in the nurturing transformation of Heaven and Earth—through musical pitch, humanity merges into that grand rhythm of Heaven and Earth, "washing away the old and welcoming the new."

This is precisely the deepest purpose of "the unity of pitch and calendar": it makes humanity no longer a mere bystander to the rhythm of Heaven and Earth, but, through musical pitch, a respondent to that rhythm, a participant in it, even a fellow performer alongside it. A single pipe sounding the pitch Guxian thus becomes, at the season of Guyu, an invisible yet sacred bond linking human "sound" to Heavenly "qi," communicating between the human world and the vast heavens.

Chapter 18: The Pursuit of "Why" — Philosophical Puzzles of Guyu

Section 1: Why "Rain Gives Birth to the Hundred Grains," Rather Than "Grain Awaits Rain in Order to Be Born"$1

The core meaning of Guyu is "rain giving birth to the hundred grains." But upon closer examination, the word order and phrasing of this saying themselves carry profound significance. Why do the ancients say "rain gives birth to the hundred grains" (with "rain" as the subject, actively "giving birth to" the hundred grains), rather than "grain obtains rain and is thereby born," or "grain awaits rain in order to be born" (with "grain" as the subject, passively awaiting the rain)$2

Although the Qunfangpu does indeed contain the phrase "the grain obtains rain and is born" (with grain as the subject), the expression that has circulated most widely and struck deepest into people's hearts remains "rain gives birth to the hundred grains" (with rain as the subject). This choice of word order is by no means arbitrary. "Rain gives birth to the hundred grains" places "rain" in the active, bestowing, creative position—it is rain that "gives birth to" the hundred grains; rain is the cause, the driving force, the creator.

Behind this lies the ancients' profound apprehension of Heaven's active bestowal of grace: in the relationship between Heaven and humanity, Heaven is not passively "sought after," but actively "bestows"—it actively sends down rain, actively "gives birth to" the hundred grains, actively nurtures the multitude.

This conception of "Heaven actively bestowing grace" is precisely the shared foundation of the Confucian "humaneness of Heaven and Earth" and the Daoist "the highest good is like water," "excelling in benefiting the ten thousand things." Placing "rain" in the active position of "giving birth to the hundred grains" is, grammatically, to establish that active, generous grace that Heaven bestows upon humanity without waiting to be asked. The saying "rain gives birth to the hundred grains" is thus not merely a description of farm work, but a fundamental assertion about "how Heaven treats humanity"—Heaven is something that actively "gives birth to" and nurtures the ten thousand things; between Heaven and humanity, Heaven is the party that actively bestows grace. This is the deepest philosophy of Heaven and humanity concealed within the plainest phrasing of Guyu's very name.

Section 2: Why Must the Origin of Writing Be Bound to "Rained Millet"$3

Cangjie's invention of writing, whereupon "Heaven rained down millet," is one of Guyu's strangest connections. But we must ask: among all possible "auspicious omens," why did the ancients choose precisely "rained millet" (grain descending from the sky) to symbolize the origin of writing$4 Why not "Heaven sending down sweet dew," "the phoenix arriving in ceremony," "an auspicious star appearing," or other more common auspicious signs$5

Behind this lies the ancients' deepest intuition about the essential nature of "writing"—they intuitively equated "writing" with a kind of "grain." Grain nourishes the body; writing nourishes the mind. Grain allows physical life to continue; writing allows the life of civilization to continue.

As discussed earlier, "gu 穀 means continuation"—grain is the "continuation" of life; and is writing not, likewise, the "continuation" of civilization$6 Without writing, the wisdom of earlier generations arises and vanishes with each generation, and civilization cannot carry forward; with writing, wisdom can be recorded and transmitted, and civilization can continue, generation after generation, just as grain ripens year after year. And so, in the ancients' deep intuition, writing and grain belong to one and the same category—both are "grain" that allows "life (whether physical life or the life of civilization) to continue."

Precisely for this reason, the origin of writing had to be marked by the omen of "rained millet"—for writing was, after all, another kind of "millet" sent down by Heaven to humanity, for the sake of continuing civilization. That the ancients chose "rained millet," rather than some other auspicious sign, was precisely meant to make clear: the birth of writing was a fundamental event, comparable to "Heaven sending down grain," bearing upon the survival of humanity (of civilization).

The precision and profundity of this choice is truly admirable—it establishes, between "writing" and "grain," the plainest yet most essential equation: both are "grain that continues life," one continuing the physical body, the other continuing civilization. And Guyu's "rain giving birth to the hundred grains" is precisely the other end of this equation—what it brings forth is precisely the material grain that continues physical life. Sacrificing to Cangjie at Guyu is thus a way of celebrating, within a single solar term, the descent of these "two kinds of grain" at once.

Section 3: Why Must the Solar Term of Late Spring Be Matched with Hexagram Guai's "Resolving"$7

Guyu (the chen month) is matched with hexagram Guai, and "Guai" means "resolving" (jue). But "resolving" is a rather fierce, rather conflict-laden character (to resolve away, to decide, to burst through). Yet the impression that late-spring Guyu gives is plainly one of gentle moistening (rain), of generative growth (giving birth to the hundred grains), of soft mildness (moistening things in silence). Why should such a gentle, moist solar term be matched with such a fierce hexagram of "resolving"$8

This seemingly contradictory pairing reveals precisely a "vigorous firmness" at the depths of Guyu, a nature obscured by outward appearance. On the surface, Guyu is gentle and moist; but within, a vigorous "decisive battle" is underway—yang resolving away yin, warmth resolving away cold, growth resolving away destruction, brightness resolving away darkness.

"At Qingming, snow ceases; at Guyu, frost ceases"—that "ceasing" of frost is precisely a kind of firm resolution—warm qi, with unstoppable force, resolves away the last frosty chill of the departing winter. The first sprouting of duckweed, the coaxing forth of grain, the ten thousand things "all coming forth from their curled state, all extending from their sprouting state"—behind this seemingly gentle vitality lies the vigorous force of yang qi, in its fivefold abundance, resolving away that last portion of remnant yin.

Thus hexagram Guai's "resolving" reveals the dual nature of Guyu—"yielding on the outside, firm within": its "function" is yielding (moistening things, bringing forth grain), yet its "substance" is firm (resolving away yin, ending the cold). The gentle rain, the mild vitality, are the outward appearance; while the vigorous, unstoppable force of yang, driving all of this—resolving away the remnant yin, urging spring into summer—is the true core.

This corresponds precisely to the Book of Changes' statement, "Guai means resolving, the firm resolving away the yielding," and "vigorous yet joyous, resolving yet remaining harmonious"—enacting the joyous function (Dui) through the vigorous substance (Qian); accomplishing the yielding of grain's birth through the firmness of resolving away yin. Matching Guyu with Guai is precisely meant to reveal: behind the most gentle nurturing (rain giving birth to the hundred grains) operates precisely the most vigorous Way of Heaven (the firm resolving away the yielding). Yielding and firmness, moistening and resolving, are here at Guyu, at bottom, two faces of a single whole.

Section 4: Why Are Guyu's Phenological Markers Precisely "Duckweed, the Cuckoo, and the Hoopoe"$9

Guyu's three pentads—duckweed begins to grow, the cuckoo flaps its wings, the hoopoe descends upon the mulberry—why were precisely these three chosen, rather than some other phenological signs$10 This is by no means arbitrary; there lies within it an exquisite inner logic.

Examining these three pentads closely, we find that they cover precisely three different levels, together constituting a complete "picture of late spring":

First, "duckweed begins to grow" is a plant within water, announcing "the water has warmed"—this confirms, on the level of "water," Guyu's warmth and vitality (echoing "at Guyu, frost ceases"). Second, "the cuckoo flaps its wings" is a bird in the air (centered on sound), announcing "the farming season"—this urges, on the level of "sound," Guyu's plowing and sowing (the cuckoo urging the plowing). Third, "the hoopoe descends upon the mulberry" is a bird among the mulberry trees (centered on behavior), announcing "the work of silkworms"—this opens, on the level of "mulberry," Guyu's mulberry-tending and silkworm-rearing (the hoopoe descending upon the mulberry).

Water, sound, mulberry; plant, birdcall, bird behavior; confirmation of warmth, urging of plowing, beginning of silkworms—the three pentads, from three different domains, in three different ways, cross-verify and unfold the entirety of Guyu's themes. More marvelous still, these three pentads correspond precisely to Guyu's three great pillars: duckweed's growth responds to "rain" (the image of warming water, echoing rain's generative power); the cuckoo's call responds to "grain" (urging the plowing and sowing of grain); the hoopoe's descent responds to "mulberry" (sericulture and women's work).

Rain, grain, mulberry—Guyu's three fundamentals (Heaven's grace, food, and clothing)—are matched, one to one, exactly and completely, by these three pentads, neither more nor fewer. That the ancients, among the countless phenomena of late spring, selected precisely these three as Guyu's markers is precisely because only the combination of these three could most completely, most precisely summarize the entire meaning of Guyu—"rain moistening, grain growing, mulberry flourishing." In this selection of phenology, we may see the precision of the ancients' observation and the depth of their distillation.

Section 5: Why Did the Ancients Bind "Farming" and "Writing" to the Same Solar Term$11

This is the deepest, and also the most distinctive, "why" of Guyu: among all the solar terms, Guyu alone binds together the most "concrete" of matters, farming (rain giving birth to the hundred grains), with the most "cultural" of matters, writing (Cangjie's invention of writing). Why$12

Because, in the deepest wisdom of the ancients, "farming" and "writing" are the two great cornerstones of civilization, neither dispensable, and essentially connected. Farming resolves humanity's "survival"—it allows the physical body to continue; writing accomplishes humanity's "civilization"—it allows wisdom to be transmitted. One allows humanity to "stay alive"; the other allows humanity to "live meaningfully, with continuity." One is material, the other spiritual; one nourishes the body, the other the mind; together they support the entire foundation of what makes humanity human, and what makes civilization civilization.

And binding these two cornerstones to Guyu is precisely because Guyu's image of "rained grain" in "rain giving birth to the hundred grains" can encompass both at once—the "grain" in the field is the grain that nourishes the body, and Cangjie's "writing (rained millet)" is the grain that nourishes the mind; both alike are "grain sent down by Heaven."

The ancients, taking this image of "rained grain" as their pivot, fused together farming and writing, survival and civilization, body and mind, within this single solar term of Guyu, precisely to express a most complete conviction about "what civilization is": a complete civilization must be a unity of "food" and "writing"—it must have both the five grains that sustain life, and the writing that transmits wisdom; it must rely both on the humaneness of Heaven and Earth's nurturing (rain giving birth to the hundred grains) and cherish the achievement of the sages' creation (Cangjie's invention of writing).

Guyu thus becomes, among the twenty-four solar terms, the only one that celebrates, simultaneously, both "the humaneness of Heaven and Earth nurturing the body" and "the achievement of human culture nurturing the mind." Within a single rain of late spring, it harmoniously unites the two most fundamental questions—"how humanity lives" and "how humanity lives with civilization." This is precisely the most distinctive, most profound cultural character of Guyu among all the solar terms.

Conclusion: The Gate of Guyu — Seeing the Full Tenderness of Civilization Within a Single Rain

Section 1: Looking Back — What Have We Seen Within Guyu$13

Through the layered inquiries of the eighteen chapters above, we have gazed as deeply as possible at the solar term "Guyu," from multiple dimensions—etymology, astronomy, the Monthly Ordinances, Confucianism, Daoism, the Book of Changes, phenology, the Five Phases, farming, writing, nourishing life, ritual, literature, myth, musical pitch, and philosophy.

We have seen: Guyu is by no means a simple late-spring point marking "more rain has come," but a cosmic, civilizational event of grand scale, running through Heaven, Earth, and humanity, encompassing food, clothing, and writing.

Its name, "rain giving birth to the hundred grains," writes out the generous brushstroke of Heaven and Earth nurturing grain through rain, covering and rearing the multitude with a wordless humaneness; its hexagram, Guai (five yang lines resolving away one yin), conceals the great principle of the Heavenly Way—yang resolving away yin, warmth resolving away cold, firmness and yielding mutually completing each other; its phenology—duckweed, the cuckoo, the hoopoe—encompasses the three great fundamentals of rain's moistening, grain's growth, and mulberry's flourishing; and its legend, "Heaven rained down millet, and ghosts wept in the night," marvelously fuses together farming and writing, nourishing the body and nourishing the mind, survival and civilization, into a single whole.

We have seen: the ancients' understanding of Guyu far exceeded the practical level of "it is time to sow." From a single rain of late spring, they read the humaneness of Heaven and Earth (rain giving birth to the hundred grains, like timely rain transforming people); they read that the highest good is like water (moistening things in silence, benefiting all without contention); they read the resolving of hexagram Guai (the firm resolving away the yielding, resolving yet remaining harmonious); they read the admonition against overflowing fullness (fullness invites loss, the noble person resolutely firm yet wary and cautious); and, still more, they read the origin of civilization (rained millet is like writing, and writing too nourishes life). An ordinary rain, in the eyes of the ancients, was laden with such abundant, such profound meaning between Heaven and humanity.

We have seen: though Confucianism and Daoism differ in their attitudes (Confucianism seizes the rain to sow with urgency, striving to bring forth vitality, not violating the farming season; Daoism moistens things in silence, accomplishes its task without dwelling upon it, guards against overflowing fullness at the height of flourishing), their core concerns are interconnected—how, in this late spring of Heaven and Earth's nurturing, can humanity harmonize with the Way of Heaven$14 How can one both exhaust human effort (seizing the sowing, tending the mulberry, honoring writing) and accord with Heaven's timing (awaiting the timely rain, according with phenology, harmonizing with yin and yang)$15 Guyu is precisely the point where "exhausting human effort" and "according with Heaven's timing" perfectly converge—the most heartfelt "covenant between Heaven and humanity" of the entire year.

Section 2: The Gate of Guyu — A Metaphor

If we liken Guyu to a gate, then on this side of the gate lies spring—gentle and moist, generative, its blossoms about to fade yet still surging with vitality, the late spring; and on the other side of the gate lies summer—pure yang, blazing, the ten thousand things about to turn from "birth" to "growth," high summer (Start of Summer, hexagram Qian).

To cross this gate means passing from "birth" toward "growth"—the hundred grains that spring coaxed forth (birth) are about to, in summer's blazing sun, jump their joints, put forth ears, and swell to fullness (growth). What Guyu's rain "gives birth to" is precisely what summer's fire is to "grow" into fullness.

To cross this gate also means passing from "moistening" toward "blazing"—spring's rain is gentle, dense, and generative; summer's yang is blazing, surging, and growth-inducing. That last gentle rain of spring at Guyu is quietly yielding its place to the blazing summer sun soon to come.

To cross this gate means, still more, passing from "yielding on the outside, firm within" toward "firmness and yielding both fully manifest"—Guyu's firmness (hexagram Guai's resolving away of yin) lies hidden beneath the outward appearance of yielding (rain moistening, grain being born); but by the time of Start of Summer and high summer, that vigorous yang qi, once concealed by gentleness, will manifest itself without reservation, in full blaze. Guyu is precisely the last juncture at which that vigorous yang qi gathers its strength beneath its gentle outer garment—the five yang lines of hexagram Guai, about to resolve away the last yin line, bursting through the gate to become the pure yang of hexagram Qian.

Section 3: A Final Inquiry — Why Do We Need to Understand Guyu Anew$16

At the close of this article, let us return to the question with which we began: in this age when we no longer depend on Heaven for our next meal, no longer lend an ear to the cuckoo urging the plowing, why do we still need to understand Guyu anew$17

Because in modern life, we have gradually grown estranged both from that nurturing of Heaven and Earth embodied in "rain giving birth to the hundred grains," and from that gratitude toward civilization embodied in "writing giving birth to a hundred forms of wisdom." We buy rice at the supermarket, having forgotten that rice was once "born" from the soil by the rain of Guyu; we read characters on a screen, having forgotten that characters were once "distilled," by Cangjie's "gazing up and scrutinizing down," from the pattern of Heaven and Earth—a great gift comparable to "Heaven raining down millet." We enjoy the full fruits of these two great foundations of civilization, food and writing, yet have forgotten that both originate in the humaneness of Heaven and Earth's nurturing and the achievement of our ancestors' creation.

To understand Guyu anew is not to return to the high antiquity of slash-and-burn farming (which is neither possible nor desirable), but to reawaken a long-absent sense of "gratitude" and "reverence"—gratitude toward the humaneness of Heaven and Earth (a single grain of rice was born from the soil by a single rain), and reverence toward the origin of civilization (a single character was understood by our ancestors from the pattern of Heaven and Earth).

When Guyu arrives, try to consider this: every grain of rice in your bowl is steeped in the moistening of a rain of Guyu; every character before your eyes is connected to that far-off ancient night of Cangjie, when "Heaven rained down millet, and ghosts wept in the night." In such reflection, you may perhaps once again touch that sense of solemnity the ancients once experienced—of being connected to Heaven and Earth, of being linked to civilization—you are not an isolated modern individual; you are a recipient of the humaneness of Heaven and Earth's nurturing, an heir carrying forward the flame of thousands of years of civilization.

The Master said: "What does Heaven ever say$18 The four seasons proceed on their course, and the hundred things are born—what does Heaven ever say$19"

Heaven never speaks. But at Guyu, it sends down a rain—a rain that silently "gives birth" to the hundred grains, and seems also to "give birth" to writing, a gentle yet vast rain. This rain is Heaven's most generous "utterance" to humanity: an utterance about nurturing, about the grace of humaneness, about civilization—one that speaks not a single word, yet captures the fullest measure of grace.

The question is: when the rain of Guyu falls once again, will we still be able to see, within it, the full tenderness of that entire civilization$20