Chapter Seven: A Dedicated Study of the Long Summer and Central Earth — Earth Virtue Presiding at the Center, the Pivot of the Four Seasons

I. Late Summer and the "Long Summer": The Mystery of the Fifth Season

Beyond the ordinary conception of four seasons, thinkers from the pre-Qin through the Qin and Han periods developed an exceedingly profound concept — the "long summer" (changxia), also known as the "fifth season." The month of late summer (the sixth month), in which Minor Heat falls, is precisely the core period of this "long summer."

Why is a "fifth season" needed at all$21 This arises from a fundamental difficulty in correlating the theory of the Five Phases with the four seasons. There are five phases (Wood, Fire, Earth, Metal, Water), but only four seasons (spring, summer, autumn, winter). Wood corresponds to spring, Fire to summer, Metal to autumn, and Water to winter — so to which season does "Earth" correspond$22

The ancients offered two solutions. One holds that "Earth presides over is at its height in all four seasons" (tu wang si ji) — Earth does not belong exclusively to any one season, but is at its height for eighteen days at the end of each of the four seasons (that is, the final eighteen days of every season belong to Earth), so that Earth virtue runs through all four seasons and presides over all four directions. The other solution divides out a "long summer" from within summer itself as Earth's exclusive season — usually referring to the final month of summer (the sixth month, late summer), or a span of time at the juncture between summer and autumn. Whichever solution is adopted, the sixth month of late summer bears the closest possible connection to "Earth."

In describing the month of late summer, the "Monthly Ordinances" of the Book of Rites inserts a substantial, dedicated passage on "Central Earth": "Central Earth. Its days are wu and ji; its sovereign is the Yellow Sovereign; its guardian spirit is Sovereign Earth; its creatures are the naked; its note is gong; its number is five; its flavor is sweet; its smell is fragrant; its sacrifice is to the central roof-opening, offering the heart first." This passage stands independent of the four seasons, yet is placed after late summer (the sixth month) and before early autumn (the seventh month) — this position itself carries profound significance: Earth resides between summer and autumn, between Fire and Metal, at the very center of the year.

II. The Correspondences of Central Earth: Residing at the Center, Presiding over the Four Directions

Let us examine, one by one, the correspondences of "Central Earth," and grasp the profound meaning of "Earth virtue residing at the center":

"Its days are wu and ji" — Central Earth corresponds to wu and ji among the Ten Heavenly Stems. Wu and ji sit at the very center of the ten stems (jia, yi, bing, ding, wu, ji, geng, xin, ren, gui), following bing and ding (Fire) and preceding geng and xin (Metal) — this is precisely the position of Earth "residing at the center," receiving Fire and opening the way for Metal.

"Its sovereign is the Yellow Sovereign" — the presiding sovereign of Central Earth is the Yellow Sovereign (Huangdi). The Yellow Sovereign takes "Yellow" as his title — yellow being the color of Earth. In the system of the Five Sovereigns, the Yellow Sovereign resides at the center, presiding over the sovereigns of the four directions (Taihao, the Fiery Sovereign, Shaohao, and Zhuanxu). The reason the Yellow Sovereign is honored as the ancestor of the Chinese people and the founder of civilization is inseparable from this idea of "Earth virtue residing at the center, presiding over the four directions" — Earth is that on which all things depend and the pivot of the four seasons, and the Yellow Sovereign is the center of order in the human world.

"Its guardian spirit is Sovereign Earth" — the assisting spirit of Central Earth is Sovereign Earth (Houtu). Sovereign Earth is the god of the earth, presiding over land, fertility, and the nurturing transformation of all things. The paired phrase "August Heaven and Sovereign Earth" (huangtian houtu) — Heaven as father, Earth as mother — makes Sovereign Earth the maternal earth that bears and nurtures all things.

"Its creatures are the naked" — the representative category of creature for Central Earth is the "naked creatures" (luochong), that is, creatures without scales, feathers, fur, or shell covering their bodies, represented by humankind. Humanity, the most spirited of all creatures, occupies the central position among the five categories of creature — once again embodying the theme of "the center," "residing at the center." Humanity belongs to Earth and resides at the center, just as Earth virtue presides over the four directions and humanity forms the pivot of all things.

"Its note is gong" — the musical note of Central Earth is gong. Among the five notes (gong, shang, jue, zhi, yu), gong is the most resonant, steady, and central — the ancients said "gong is the ruler," the note that governs and centers the five notes. Earth's correspondence to the gong note precisely fits the idea of "Earth virtue residing at the center, ruling over the other four phases."

"Its number is five" — the numerological figure of Central Earth is five. In the system "one and six are Water, two and seven are Fire, three and eight are Wood, four and nine are Metal, five and ten are Earth," five and ten belong to Earth. And "five" is precisely the central number among one through nine (one, two, three, four, five, six, seven, eight, nine — five sits at the very center). Earth's correspondence to five once again manifests the meaning of "residing at the center."

"Its flavor is sweet" — the flavor of Central Earth is sweet. Sweetness sits at the center of the Five Flavors — unlike sour, bitter, pungent, or salty, it carries no strong inclination in any direction, but is balanced, central, and correct, able to harmonize with all the other flavors. The ancients said that sweetness "can soften and can harmonize" — the sweet flavor possesses a harmonizing, buffering effect, fitting precisely with Earth virtue's central and harmonious nature of "harmonizing the four directions, presiding over the four seasons."

"Its smell is fragrant" — the smell of Central Earth is fragrance. A mellow, pleasant fragrance sits at the center of the Five Smells, likewise fitting the central and correct meaning of Earth virtue.

"Its sacrifice is to the central roof-opening" — the object of sacrifice for Central Earth is the "central roof-opening" (zhongliu). The zhongliu is the central part of a dwelling (in ancient houses, the central opening through which light entered and rain was collected, extended in meaning to the earth god of the dwelling's center). Sacrificing to the zhongliu is precisely a form of reverence for "the center of the dwelling, the center of the land" — once again fastening upon the theme of "the center," "residing at the center."

"Offering the heart first" — the organ first offered in sacrifice is the heart. The heart resides at the center of the human body and rules over the five viscera — "the heart is the office of the sovereign." The heart's correspondence to Earth precisely fits the idea of Earth virtue "residing at the center as ruler."

Surveying this entire set of correspondences, we find a single theme running throughout: the center. The days (wu and ji at the center), the sovereign (the Yellow Sovereign at the center), the creature (humanity at the center of the five categories), the note (gong at the center of the five notes), the number (five at the center of the nine numbers), the flavor (sweet at the center of the five flavors), the viscus (the heart at the center of the five viscera) — everything points toward "the center," "residing at the center," "ruling as sovereign." The essence of Earth virtue is precisely "the center."

III. The "Center" of Earth Virtue: The Pivotal Axis of the Four Seasons

Why did the ancients so revere the "center" of Earth virtue$23 This touches on one of the most profound insights of pre-Qin cosmology — that "the center" is the pivotal axis around which the cosmos turns.

The "Four Seasons" (Sishi) chapter of the Guanzi offers an exceedingly important discussion of Earth virtue. After discussing spring's Wood, summer's Fire, autumn's Metal, and winter's Water, it turns specifically to Central Earth: "The center is called Earth. Earth virtue in truth assists the four seasons in their coming and going, regulating wind and rain so as to strengthen the land's vital force. Earth's virtue is 'peaceful and evenly applied, central and correct, without partiality.'" The center is called Earth. Earth virtue in fact assists the movement and succession of the four seasons, regulating wind and rain, and strengthening the land's vital force. Earth's character is "peaceful and evenly applied, central and correct, without partiality."

This passage points to the core function of Earth virtue — "assisting the four seasons in their coming and going." Wood, Fire, Metal, and Water each preside over one season (spring, summer, autumn, winter respectively), while Earth does not preside exclusively over any one season; its role is to "assist" — to support, to bear, to link together the movement of the four seasons. Without Earth, Wood would have nowhere to grow (trees grow in the earth), Fire would have nothing to depend on (fire needs fuel, and fuel grows from the earth), Metal would have nowhere to emerge from (metal is hidden within the earth), and Water would have nowhere to be contained (water flows over the earth and is stored within it). Earth is the mother and the destination of the other four phases, the pivotal axis and mediator of the four seasons' movement.

Why does this insight bear a special connection to Minor Heat (late summer)$24 Because the sixth month of late summer is precisely the transitional season when "Fire" is nearing its end but "Metal" has not yet arrived — the high summer of Fire virtue is about to conclude, while the autumn of Metal virtue has not yet come. And it is precisely at this transitional moment between Fire and Metal that "Earth" makes its appearance. Earth, residing between Fire and Metal, receives Fire's remaining warmth and nurtures the germination of Metal's severity; it neither blazes upward and unrestrainedly like Fire, nor gathers in and cuts down severely like Metal, but through a central and harmonious virtue of "peaceful and evenly applied, central and correct, without partiality," steadily completes the transition from summer to autumn, from Fire to Metal.

This is precisely why the "Monthly Ordinances" places "Central Earth" between late summer (the sixth month) and early autumn (the seventh month) — because only the "center" of Earth virtue can bear the pivotal responsibility of the juncture between summer and autumn, between Fire and Metal. Late summer, in which Minor Heat falls, is precisely the critical transitional period during which heaven-and-earth's qi turns "from Fire to Metal, from summer into autumn," and it is Earth virtue — residing at the center, presiding without partiality — that presides over this transition.

IV. The Philosophy of "the Center": From Earth Virtue to the Doctrine of the Mean

The "center" of Earth virtue is, at the deepest level, continuous with the Confucian "doctrine of the mean" (zhongyong) and the Daoist "preservation of the center" (shouzhong).

The Doctrine of the Mean states: "Centrality is the great root of all under heaven; harmony is the universal path that runs throughout all under heaven. When centrality and harmony are fully realized, heaven and earth take their proper places, and the myriad things are nurtured." Centrality is the great root of all under heaven; harmony is the great Way that runs universally throughout all under heaven. Once the state of centrality and harmony is achieved, heaven and earth each settle into their proper place, and the myriad things grow and flourish accordingly.

How closely this passage resembles the idea of Earth virtue being "central and correct, without partiality, nurturing the transformation of all things"! Earth's residing at the center is precisely the concrete embodiment of "the great root of all under heaven"; Earth's being "peaceful and evenly applied" is precisely the manifestation of "the universal path that runs throughout all under heaven"; Earth's "assisting the four seasons in their coming and going, nurturing the transformation of all things" is precisely a portrait of "heaven and earth take their proper places, and the myriad things are nurtured." One might say that the "center" of Earth virtue is precisely the foundation, within the cosmology of the Five Phases, of the "centrality" spoken of in the "doctrine of the mean."

Master Lao likewise says: "Much talk leads swiftly to exhaustion; better to preserve the center within" (Daodejing, Chapter 5). Excessive proliferation of ordinances only hastens ruin; it is better to hold fast to the central way (of emptiness and stillness). Though this "preserving the center," in Master Lao's usage, leans more toward "preserving the center of emptiness and stillness," it likewise points toward the wisdom of "the center" as the fundamental root.

The long summer of late summer, in which Minor Heat falls, takes as its core spirit Earth virtue's residing at the center, presiding over the four seasons, being central and correct without partiality, and nurturing the transformation of all things. It reminds us: at this critical moment when Fire virtue is at its height and about to turn into Metal's severity, only by holding fast to that "center" of Earth virtue — "central and correct, without partiality, peaceful and evenly applied" — can the transformation be completed steadily, all things be nurtured, and heaven and earth be settled into order. This is a supreme state of "residing at the center without partiality, presiding without contention" — it is neither Fire's unrestrained blazing upward nor Metal's severe gathering-in and cutting-down, but that "center" capable of embracing, harmonizing, and bearing everything. Within the dual wisdom of knowing withdrawal at the height of flourishing (the hexagram Dun) and preserving the center to nurture all things (Earth virtue), Minor Heat displays a profundity all its own.

V. Earth Presiding over All Four Seasons: Why Does Earth Virtue Not Preside Exclusively over Any One Season$25

As noted earlier, correlating the Five Phases with the four seasons presents the difficulty that "there are five phases but only four seasons," and one solution to this is "Earth presides over is at its height in all four seasons" — Earth does not belong exclusively to any one season, but is at its height for eighteen days at the end of each of the four seasons. This solution contains an exceedingly profound philosophical principle, worth examining in its own right.

Why can Earth virtue choose "not to preside exclusively over any one season," instead being at its height across all four$26 Because the essence of Earth virtue is "the center," is "assistance," is "presiding over" — it is not a "fifth force" standing alongside Wood, Fire, Metal, and Water, but the "pivotal axis" that runs through, bears, and harmonizes the other four. Wood, Fire, Metal, and Water each preside over one season (spring, summer, autumn, winter respectively); they are "divided," they are "partial" (each inclined toward one direction, one season); whereas Earth is "unifying," is "central" — it inclines toward no single season, yet runs through every season. Precisely because Earth does not preside exclusively over any one season, it is able to "assist the four seasons in their coming and going," presiding over all four directions and all four seasons.

This leads to an exceedingly profound insight: true "presiding over" arises precisely from "not contending to be the ruler of any single moment." If Earth were to contend, like Wood, Fire, Metal, and Water, for dominance over a single season, it would be demoted to the status of just another "partial" member standing alongside the other four, and would lose its qualification to "reside at the center and preside over all." Only by willingly occupying the "central" position of "not presiding exclusively over any one season" can it become the shared foundation and pivotal axis of all four seasons. How closely this resonates with Master Lao's wisdom: "It is precisely because he does not contend that no one under heaven can contend with him" (Daodejing, Chapter 22)! Earth virtue, precisely because it "does not contend to be the ruler of any single moment," instead becomes the shared sovereign of all four seasons — this is the supreme wisdom of "taking non-contention as the greatest contention, taking residence at the center as presiding over all."

At a still deeper level, "Earth presiding over all four seasons" also reveals the truth that "the center" is present everywhere. Earth is at its height at the end of each of the four seasons — at the end of spring, the end of summer, the end of autumn, the end of winter, there is in each case a span of time belonging to Earth. This means that every "transitional period," in which one season turns into the next, requires Earth virtue (the center) to bear the responsibility of pivoting the transition. In other words, "the center" is not fixed in any single place, but runs through every joint of every transformation — every turn from flourishing to decline, every succession of the seasons, cannot do without that harmonizing Earth virtue residing at the center. The late summer in which Minor Heat falls is precisely the joint of the transformation from summer to autumn, and so Earth virtue is at its height there; and extending this further, every joint of every transformation is a moment in which "the center" (Earth virtue) exerts its power. What a profound cosmic wisdom this is — "the center" is not a static point, but an eternal force of harmonization and bearing that flows through every transformation.