Warm Wind Arrives: The Way of Withdrawal at the Height of Flourishing in the Minor Heat
This article offers a deep reading of Minor Heat (Xiaoshu) through the dimensions of pre-Qin Confucian and Daoist philosophy, classical etymology, and astronomy and phenology. It analyzes the dual meanings of heat in the character 'shu' and the moderation implied by 'minor' as yet unextreme, reveals the noble person's way of withdrawing at the height of flourishing and retreating while the current still runs strong as expressed in the hexagram Dun (Retreat), and explores the ancient wisdom of Earth virtue presiding at the center of late summer and of nurturing the heart through concealment and stillness — inviting readers to return to a world of resonance between heaven and humanity.

Chapter Three: The Month of Late Summer in the Book of Rites, "Monthly Ordinances" — A Complete Cosmic Picture
I. 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 Minor Heat and the month of late summer (the sixth month) in which it falls belongs to the "Monthly Ordinances" (Yueling) chapter of the Book of Rites (Liji) — its content aligns closely with the "Record of Late Summer" in the Springs and Autumns of Lü Buwei (Lüshi Chunqiu), and scholars generally hold that the two share a common origin. The Monthly Ordinances is not a simple calendrical record but a complete guide to action linking heaven and humanity — it tells us how the celestial phenomena stand, how the things of earth stand, and how human affairs ought to proceed at a given point in time.
An explanation is needed first: Minor Heat falls in the sixth-month solar term (the beginning of the month), while Great Heat falls in the middle of the sixth month. The whole sixth month is called "the month of late summer" (jixia zhi yue) — early summer (the fourth month), midsummer (the fifth month), and late summer (the sixth month) together make up summer, and late summer is its final month. The character "ji" (季) means "last" or "youngest," as in the youngest among brothers ranked by age. Late summer is precisely the month in which summer is about to reach its end. This character "ji" once again forms a profound echo with the "minor" of Minor Heat and the "retreat" of the hexagram Dun — all three speak of the same thing: the height of high summer is, at the same time, summer's final act.
The "Monthly Ordinances" opens its description of the month of late summer by sketching its celestial coordinates: "In the month of late summer, the sun is in the Willow lunar mansion; at dusk, Fire is at the center of the southern sky; at dawn, the Kui mansion is at the center." The sun's course reaches the position of the Willow mansion; at dusk, the Great Fire Star stands at the center of the southern sky ("at dusk, Fire is at the center"); at dawn, the Kui mansion stands at the center of the southern sky. The phrase "at dusk, Fire is at the center" is especially crucial — it echoes precisely the passage cited earlier from the "Canon of Yao," "the day is at its longest, and the star is Fire." At dusk in late summer, the Great Fire Star sits exactly at the zenith of the southern sky, its brilliance blazing.
II. The Five Phases Correspondences of the Month of Late Summer: The Final Glory of Fire Virtue
Immediately following, the Monthly Ordinances describes the Five Phases (wuxing) attributes of the month of late summer:
"Its days are bing and ding; its sovereign is the Fiery Sovereign; its guardian spirit is Zhurong; its creatures are the feathered; its note is zhi; its number is seven; its flavor is bitter; its smell is scorched; its sacrifice is to the hearth, offering the lungs first."
This passage corresponds exactly to that of early summer (the Beginning of Summer) — because the entirety of summer belongs to Fire. Let us examine each correspondence in turn, paying particular attention to what "Fire virtue" signifies at this special stage of late summer, the end of summer:
"Its days are bing and ding" — the month of late summer corresponds to bing and ding among the Ten Heavenly Stems. Among the ten stems, jia and yi belong to Wood (spring), bing and ding belong to Fire (summer), wu and ji belong to Earth (long summer / late summer), geng and xin belong to Metal (autumn), and ren and gui belong to Water (winter). Bing and ding belong to Fire, and are therefore assigned to the whole of summer. This system of correspondence, linking time (the Heavenly Stems) with material qualities (the Five Phases), forms one of the basic frameworks of pre-Qin cosmology.
"Its sovereign is the Fiery Sovereign" — the presiding sovereign of the month of late summer is the Fiery Sovereign (Yandi), also known as Shennong, the sovereign of Fire virtue in high antiquity's mythology. In the system correlating the Five Phases with the Five Sovereigns: the sovereign of spring is Taihao (Wood virtue), the sovereign of summer is the Fiery Sovereign (Fire virtue), the sovereign of the center is the Yellow Sovereign (Earth virtue), the sovereign of autumn is Shaohao (Metal virtue), and the sovereign of winter is Zhuanxu (Water virtue). The Fiery Sovereign takes "Fiery" as his title, his very name carrying the image of blazing fire, in perfect accord with the Fire virtue of summer.
"Its guardian spirit is Zhurong" — the assisting spirit of the month of late summer is Zhurong. Zhurong is the fire god of high antiquity's mythology, a minister of the Fiery Sovereign. The "Classic of the Regions Beyond the Seas: South" in the Classic of Mountains and Seas (Shanhaijing) records: "In the south is Zhurong, with the body of a beast and the face of a man, riding two dragons." Zhurong, in his role as fire god, presides over the south and over summer, in accord with the Five Phases' understanding that Fire belongs to the south. Why is both a "sovereign" and a "spirit" needed$24 This reflects a core principle of pre-Qin political philosophy — governance requires a hierarchical division of labor: the sovereign is the supreme ruler, setting the overall direction; the spirit is the concrete executor, carrying out the sovereign's will. As it is in heaven, so it is among humankind — the Son of Heaven is the "sovereign" of the human world, and the hundred officials are its "spirits."
"Its creatures are the feathered" — the representative category of creature for the month of late summer is the "feathered creatures" (yuchong), that is, birds. In the pre-Qin classification of creatures, all things were divided into five categories: scaled creatures (fish, corresponding to spring), feathered creatures (birds, corresponding to summer), naked creatures (humans, corresponding to the center), furred creatures (beasts, corresponding to autumn), and shelled creatures (crustaceans, corresponding to winter). Birds correspond to summer for two reasons: first, birds are most active and their calls loudest in summer; second, birds fly through the sky, carrying an image of "ascent" that accords with Fire's characteristic upward motion. It is worth noting that one of the three phenological signs of Minor Heat, "hawks begin to practice striking" (ying shi zhi), features the hawk as its protagonist — and the hawk is precisely a feathered creature. This is no coincidence, as we shall explore in depth later.
"Its note is zhi" — the musical note of the month of late summer is zhi. Among the five notes (gong, shang, jue, zhi, yu), zhi is stirring and high-pitched, its tonal quality corresponding to Fire's blazing character. The ancients believed that each season possessed its own particular "sound" — not that only the zhi note could be heard in summer, but that the vibrational frequency of heaven-and-earth's qi in summer resonates with the zhi note. What a marvelous and bold act of imagination this is, linking acoustics with cosmology! Yet late summer holds one further peculiarity — it also partakes of the nature of "Earth" (as detailed in the dedicated chapter on the long summer below), and the note of Earth is gong. This transition between zhi and gong is precisely a subtle expression of late summer as the "juncture between summer and autumn," where "Fire hands off to Earth."
"Its number is seven" — the numerological figure of the month of late summer is seven. 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. Seven belongs to Fire, and is therefore assigned to summer. This correspondence between numbers and the Five Phases has an extremely ancient origin, possibly connected to the tradition of the River Chart and Luo Writing (Hetu, Luoshu).
"Its flavor is bitter" — the flavor of the month of late summer is bitter. The correspondence between the Five Flavors (sour, bitter, sweet, pungent, salty) and the Five Phases is: sour belongs to Wood (spring), bitter to Fire (summer), sweet to Earth (long summer), pungent to Metal (autumn), and salty to Water (winter). Why does bitterness belong to Fire$25 One explanation holds that bitter-flavored medicinal substances mostly possess the property of clearing heat and resolving toxins, and clearing heat is precisely the remedy for Fire in excess. A deeper explanation holds that Fire's nature is to blaze upward, its qi is dry, and dryness at its extreme gives rise to bitterness. At the time of Minor Heat's summer swelter, people especially favor bitter foods (such as bitter melon, bitter greens, and lotus-seed heart) to clear the heart and reduce fire — this is precisely the nurturing wisdom of "expelling fire through bitterness," in tacit accord with the Five Phases correspondences.
"Its smell is scorched" — the smell of the month of late summer is the smell of scorching. The scorched smell arises when matter is burned by fire, directly connected to summer's belonging to Fire. Among the Five Smells (rank, scorched, fragrant, fishy, putrid), the scorched smell carries the strongest sense of "heat," in accord with the blazing swelter of high summer.
"Its sacrifice is to the hearth" — the object of sacrifice in the month of late summer is the hearth god. The hearth is the place where fire is used. Sacrificing to Fire with fire, sacrificing to summer with the hearth — the logic runs consistently throughout. The sacrifice to the hearth god also reflects the ancients' understanding of "fire" in terms of daily life — fire is not merely a cosmic force but also the basic tool of daily cooking and survival.
"Offering the lungs first" — the organ first offered in sacrifice is the lungs. In the correspondence between the Five Viscera and the Five Phases, pre-Qin sources offer differing accounts; here the Monthly Ordinances assigns the lungs to summer, differing from the later medical tradition that assigns the heart to Fire. This reflects the variation in Five Phases correspondences across different periods and schools in the pre-Qin era. But regardless of the specific correspondence, the underlying logic remains consistent: every organ of the body corresponds to some level of the cosmos, and offering a particular organ in sacrifice expresses the resonance between the human body and heaven and earth.
III. The Son of Heaven's Conduct and Ordinances in the Month of Late Summer: Fire's Qi Nearing Its End, Earth Virtue About to Rise
The Monthly Ordinances gives detailed prescriptions for the Son of Heaven's conduct in the month of late summer, with the colors of his clothing, food, dwelling, and travel still following the Fire virtue of summer — dwelling in the Hall of Light, wearing vermilion robes, riding the vermilion chariot, driving red bay horses, wearing red jade. Yet the ordinances for the month of late summer contain certain extremely important elements that point toward a "turning point":
"In this month, the earth is moist and steaming with heat, and great rains fall from time to time." In this month, the earth is moist, the summer heat steams upward (rushu, "steaming swelter," meaning damp heat), and great rains fall often. This is precisely a faithful portrait of the period around Minor Heat when the plum rains end and the dog days begin, rain and heat coinciding. The character ru (溽) is built on "water," meaning moist or humid-hot — this single character captures the "dampness" characteristic of late summer's heat, echoing the earlier discussion of the damp-heat steaming together implicit in the character "shu."
"Burn the cut weeds and let water run over them; this is good for killing the grasses, as effective as scalding water. It can fertilize the fields and improve the soil's borders." Burning the cut-down weeds, then letting water flow over the land, is effective at killing weeds, with an effect like being doused in boiling water; this fertilizes the fields and improves the soil. This provision is extremely significant — it is precisely a record of the high-antiquity agricultural technique of "slash-and-burn cultivation," using fire to fertilize the fields, and it once again confirms the profound connection between Fire and agriculture, between Fire and Earth.
Most notable of all is that the Monthly Ordinances inserts, specifically within the month of late summer, a substantial passage on "Central Earth" (detailed in the dedicated chapter on the long summer below). This means that, in late summer, as Fire virtue nears its end, the ancients had already begun preparing for the coming "Earth virtue" (the long summer), and even for the "Metal virtue" of autumn. The ordinances the Monthly Ordinances records for late summer everywhere betray an atmosphere of transition — of "carrying forward what came before while opening what follows," of "Fire withdrawing as Earth rises." This once again forms a profound inner echo with the theme of Minor Heat, "knowing withdrawal at the height of flourishing."
IV. The Warning of the Monthly Ordinances: The Consequences of Untimely Ordinances
Having described what should properly be done in the month of late summer, the Monthly Ordinances issues a stern warning about the consequences of improper conduct:
"If in late summer the ordinances of spring are carried out, the grain will ripen and fall prematurely, the state will suffer much wind-borne coughing illness, and the people will migrate. If the ordinances of autumn are carried out, the hills and lowlands will flood with standing water, the crops will not ripen, and there will be much calamity affecting women. If the ordinances of winter are carried out, cold winds will come out of season, hawks and falcons will strike prematurely, and people of the outlying regions will flee into fortified enclosures."
If, in late summer, the ordinances proper to spring are carried out, the grain will wither and fall, the state will suffer much illness of wind-borne coughing, and the people will be displaced and set to wandering; if the ordinances of autumn are carried out, the hills and lowlands will flood with standing water, the crops will fail to ripen, and calamities befalling women will multiply; if the ordinances of winter are carried out, cold winds will blow out of season, hawks and falcons will strike prematurely, and the people of the four borders will flee into fortified refuge.
What is the logical basis of these warnings$26 It rests on a core conviction: each season possesses its own particular "qi," and the nature of governmental ordinances likewise possesses its own particular "qi." If the qi of the season is mismatched with the qi of the ordinances, climatic and agricultural calamities will result. Particularly worth savoring is the line "hawks and falcons strike prematurely" — it says that if late summer mistakenly carries out the ordinances of winter, hawks and falcons will strike "prematurely." This confirms, by contrast, that the third phenological sign of Minor Heat, "hawks begin to practice striking," is the normal, seasonally appropriate phenomenon of late summer, whereas its premature occurrence (caused by mistakenly carrying out winter's ordinances) would be an ominous anomaly. This confirms, from the opposite direction, the precision of the astronomical and seasonal basis of Minor Heat's phenological signs.
From a modern standpoint, this kind of causal relationship of course lacks scientific grounding. But understood from another angle, the warnings of the Monthly Ordinances in fact contain a profound political wisdom: governance ought to have its own rhythm. When society needs rest and recovery, do not impose harsh exactions; when all things are growing and flourishing, do not carry out executions and punishments rashly. The Monthly Ordinances wraps this political wisdom in the framework of resonance between heaven and humanity, but its core insight — that governance must accord with the timing of heaven and the objective needs of society — retains its value even today.