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 Four: A Dedicated Study of the Hexagram Dun — The Noble Person's Way of Knowing Withdrawal at the Height of Flourishing and Retreating While the Current Still Runs Strong
I. The Twelve Sovereign Hexagrams and the Hexagram Position of Minor Heat
To truly understand Minor Heat, one must delve into the system of the twelve sovereign hexagrams (shixiao gua) in the Book of Changes. The "sovereign hexagrams" (xiaoxi gua) use twelve hexagram images to correspond to the twelve months of the year, displaying the complete process of yin and yang waxing and waning. "Xiao" (消) means yin growing while yang withdraws; "xi" (息) means yang growing while yin withdraws. The twelve hexagrams are as follows:
The eleventh month, hexagram Fu (Return, one yang line born); the twelfth month, hexagram Lin (Approach, two yang lines growing); the first month, hexagram Tai (Peace, three yang lines opening into peace); the second month, hexagram Dazhuang (Great Strength, four yang lines vigorous and flourishing); the third month, hexagram Guai (Resolution, five yang lines resolving away yin); the fourth month, hexagram Qian (Heaven, six yang lines, pure yang) — this marks the extreme of yang energy. Thereafter yin energy begins to sprout — the fifth month, hexagram Gou (Encounter, one yin line just born below); the sixth month, hexagram Dun (Retreat, two yin lines gradually growing); the seventh month, hexagram Pi (Stagnation, three yin and three yang); the eighth month, hexagram Guan (Contemplation, four yin lines flourishing); the ninth month, hexagram Bo (Splitting Apart, five yin lines stripping away yang); the tenth month, hexagram Kun (Earth, six yin lines, pure yin) — this marks the extreme of yin energy.
The sixth month (the Month of Wei), in which Minor Heat falls, corresponds precisely to the hexagram Dun (Retreat, ䷠). The image of the hexagram Dun is: Qian above, Gen below — the upper trigram is Qian (Heaven), the lower trigram is Gen (Mountain). Viewed by its lines, the two bottom lines are yin (the first and second lines), while the four lines above are yang — this constitutes the configuration of "two yin lines gradually growing, four yang lines above." The two yin lines have already sprung up from below and are pressing upward, while the four yang lines are forced to withdraw and retreat upward, concealing themselves.
II. Interpreting the Character "Dun": Heaven Above, Mountain Below — the Noble Person Knows to Withdraw
What does the character "dun" (遁) mean$27 Dun means to flee, to withdraw, to conceal oneself. The Shuowen Jiezi states: "Dun means to move away. Also said to mean to flee." The "dun" of the hexagram Dun carries precisely this meaning of "withdrawing and concealing oneself."
The Image commentary on the hexagram Dun in the Book of Changes states: "Beneath heaven is a mountain: this is Dun. The noble person thereby keeps distance from petty people, without hostility yet with dignity." Beneath heaven is a mountain — this is the image of the hexagram Dun. Observing this image, the noble person ought to keep distance from petty people, yet without displaying open hostility, maintaining instead a dignified bearing ("without hostility yet with dignity").
Why does the image of "beneath heaven is a mountain" signify "dun" (withdrawal)$28 Here lies an exceedingly subtle image. Heaven is above, the mountain is below. Though the mountain is high, it nevertheless remains beneath heaven; though heaven always remains above the mountain, the mountain's mass grows ever higher, pressing upward, while heaven, unmoved, quietly maintains its own loftiness — it does not contend with the mountain over height, but calmly and imperceptibly preserves its own transcendence. This is "dun" — not a panicked flight, but an unhurried withdrawal; not a retreat after defeat, but a deliberate self-concealment undertaken once the situation has been clearly perceived.
Mapping this hexagram image onto the waxing and waning of yin and yang in the sixth month: the two yin lines (the image of petty people, the image of yin energy) are growing and encroaching from below, while the four yang lines (the image of the noble person, the image of yang energy) withdraw and conceal themselves upward. Yang energy knows: yin energy has already begun to grow, and although it still holds the majority for now (four yang lines), the general trend has already turned. Rather than contend head-on with yin energy and ultimately be stripped away step by step (as in the later hexagrams Pi, Guan, and Bo), it is better to withdraw and conceal oneself calmly and with dignity while one is still strong.
III. Yang Energy Knowing Its Season and Withdrawing: The Deepest Paradox of Minor Heat
This reveals the deepest paradox of Minor Heat. Minor Heat falls in the sixth month, the season when the summer swelter is nearing its height, about to reach its peak at Great Heat. In terms of bodily sensation, this is when "Fire" is most ablaze. Yet at the level of yin-yang waxing and waning, the sixth month corresponds to the hexagram Dun — yang energy is already withdrawing and concealing itself!
The outward "flourishing" and the inward "withdrawal" exist simultaneously at this juncture of Minor Heat. This appears contradictory, yet it is in fact one of the ancients' most profound insights. It reveals to us an unassailable truth: within the height of flourishing the seeds of decline already lie concealed, and the most brilliant moment is often precisely the moment when the exit has already begun.
The Tuan (Judgment) commentary on the hexagram Dun states: "Dun is prosperous — retreating brings prosperity. The firm line occupies its proper place and finds response, acting in accord with the times." The hexagram Dun is prosperous, because skillful withdrawal is what brings prosperity. The fifth line, firm and vigorous, occupies the position of honor and finds response with the second line, able to "act in accord with the times" — moving in accordance with the trend of the moment.
The phrase "acting in accord with the times" is the essence of the hexagram Dun, and also the core of the philosophy of Minor Heat. Yang energy chooses to withdraw at this moment not out of weakness, but because it understands "timeliness" — it knows that yin energy has already been born and the general trend is about to turn, and so it actively chooses to withdraw in order to attain "prosperity" (preserving itself, avoiding being stripped away entirely). This forms a sharp contrast with the top line of the Qian hexagram, "the overreaching dragon has cause for regret": the overreaching dragon does not know to withdraw, and having flown to the utmost height falls into regret; whereas the yang energy of the hexagram Dun understands withdrawal, calmly concealing itself as the height of flourishing is about to turn, and thereby attains prosperity instead.
IV. Retreating While the Current Still Runs Strong: The Noble Person's Way of Knowing Withdrawal at the Height of Flourishing
The way of "knowing withdrawal at the height of flourishing, retreating while the current still runs strong" revealed by the hexagram Dun is one of the supreme wisdoms of the pre-Qin noble person's character.
Master Lao offers an exceedingly penetrating discussion of this in the Daodejing. He says: "To withdraw once achievement is complete is the Way of Heaven" (Daodejing, Chapter 9). Once one's work is accomplished, one ought to withdraw — this accords with the Way of Heaven. Why is it "the Way of Heaven"$29 Because the workings of Heaven's Way themselves proceed exactly so — the sun, once it reaches noon (achievement complete), must inevitably slant westward (withdrawal); the moon, once full (achievement complete), must inevitably wane (withdrawal); among the four seasons, once summer's Fire reaches its height (achievement complete), it must inevitably yield its place to autumn's Metal (withdrawal). The hexagram Dun, in which Minor Heat falls, is precisely the concrete manifestation of "the Way of Heaven" at the level of yin-yang waxing and waning — yang energy's achievement complete (summer's height) and its withdrawal (two yin lines gradually growing, yang energy concealing itself).
Master Lao further says: "A hall filled with gold and jade cannot be kept secure; wealth and honor accompanied by arrogance bring calamity upon oneself" (Daodejing, Chapter 9). A hall piled high with gold and jade — no one can guard it forever; to become wealthy and honored and then grow arrogant is to bring disaster upon oneself. This is precisely the fate of one who does not understand "withdrawal." By contrast, one who understands "withdrawal" actively restrains and retreats at the height of flourishing, and is thereby able to preserve what one has for the long term.
In history, Fan Li, after helping King Goujian of Yue destroy the state of Wu and achieving fame and success, resolutely set sail upon the Five Lakes and withdrew into concealment — a model of "retreating while the current still runs strong." Before his departure, he left a letter for Wen Zhong, saying: "When the flying birds are all shot down, the fine bow is put away; when the cunning hare is dead, the hunting dog is boiled for the pot. The King of Yue has the neck of a heron and the beak of a hawk; one may share hardship with him but not joy." Wen Zhong did not heed this warning and was ultimately ordered to take his own life; Fan Li, by withdrawing once his achievement was complete, met a good end, and even amassed a fortune of a thousand pieces of gold three times over. Though this story comes down to us through later historical accounts, the wisdom it embodies — "knowing withdrawal at the height of flourishing" — is precisely a human confirmation of the spirit of the hexagram Dun.
V. "Without Hostility Yet with Dignity": The Dignity of Withdrawal
Four words in the Image commentary on the hexagram Dun are exceedingly worth savoring: "without hostility yet with dignity." The noble person withdraws from petty people (yin energy), yet without displaying open hostility, maintaining instead a dignified bearing.
What a superior form of withdrawal this is! It is not a flight born of fear, nor a rupture born of anger, but an unhurried, dignified, neither servile nor arrogant exit made after the general trend has been clearly perceived. To retain dignity within withdrawal, to keep one's integrity intact within concealment — this is the "dun" of the noble person, not the "flight" of the petty person.
The Master (Confucius) likewise showed a profound grasp of this "dignity of withdrawal." The "Tai Bo" chapter of the Analects (Lunyu) records: "When the Way prevails under heaven, show yourself; when it does not, remain hidden." When the Way prevails in the world, come forward to act; when the Way does not prevail, withdraw into concealment. This "concealment" is not a passive escape from the world, but an active choice made after carefully weighing the times. And the "Wei Ling Gong" chapter of the Analects states: "What a noble person Qu Boyu is! When the state has the Way, he serves in office; when the state lacks the Way, he can roll up his talents and keep them folded within his breast." Qu Boyu is truly a noble person! When the state's governance is enlightened, he comes forward to serve in office; when the state's governance is benighted, he folds away his talents ("rolls them up and keeps them within his breast"). This "rolling up and keeping within the breast" is the finest gloss on the hexagram Dun's teaching that "the noble person keeps distance from petty people, without hostility yet with dignity" — one calmly rolls up one's own talent, ambition, and sharpness, tucks it away within one's breast, and quietly awaits the right moment.
The hexagram Dun, to which Minor Heat corresponds, is telling us: when yin energy (the seeds of decline, petty people, an unfavorable trend) begins to grow, the truly wise person does not struggle against it in vain, nor flee in panic, but withdraws and conceals himself calmly, with the bearing of "without hostility yet with dignity," preserving himself and quietly awaiting the arrival of the next "moment." This is the supreme wisdom of knowing restraint amid abundance, of holding fast to coolness amid the heat, of knowing when to withdraw at the height of achievement.
VI. The Six Lines of the Hexagram Dun: Different Levels of Withdrawal
The subtlety of the Book of Changes lies not only in the hexagram image but even more in its six individual lines — the same "dun" takes on different levels of attainment and different fortunes depending on the position (yao wei) it occupies. The six lines of the hexagram Dun happen to sketch out, for us, the different levels of this wisdom of "withdrawal," each worth savoring in turn.
The first line (Six at the First): "Withdrawal at the tail — dangerous; do not act, do not go anywhere." Withdrawing while lagging at the very end (the "tail") is dangerous, and one should not undertake any course of action. The first line occupies the lowest position, the last and latest to withdraw. Withdrawing while lagging at the end is often the most dangerous position — because the general trend has already passed while one has not yet extricated oneself. This teaches us: withdrawal must come early; withdrawing only when one is left behind at the end plunges one into danger. This echoes precisely the earlier theme of "retreating while the current still runs strong" — one must withdraw while the momentum is still favorable and there is still room to maneuver, not delay until the very last moment.
The second line (Six at the Second): "Bound with the hide of a yellow ox, none can loosen it." Bound fast with yellow ox-hide, none can free it. The second line, holding to yielding centrality and correctness, has a resolve as firm as if bound with yellow ox-hide, unmovable by anything. This says that, in withdrawal and concealment, one must maintain unwavering integrity — once one has resolved to withdraw and hold to what is correct, one becomes as firm as ox-hide, unmoved by outside influence. "Yellow" is the color of Earth, the color of the center, an image of "centrality and correctness" — precisely fitting the noble person's attainment of withdrawing while holding to the center.
The third line (Nine at the Third): "Withdrawal entangled — there is affliction and danger; it is auspicious to keep servants and concubines." A withdrawal burdened by attachment brings affliction and danger, while keeping servants and concubines is auspicious. The third line remains entangled with the yin lines below ("withdrawal entangled"); to withdraw while the heart still harbors attachment, unable to cut decisively free, brings danger. This teaches us: withdrawal must be decisive; if the heart harbors lingering attachment, like a lotus root whose fibers remain connected even when broken, one cannot truly extricate oneself, and instead suffers harm.
The fourth line (Nine at the Fourth): "Withdrawal though fond of what is left behind — auspicious for the noble person, but not so for the petty person." To withdraw despite cherished attachments is auspicious for the noble person, but not for the petty person. The fourth line has already entered the upper trigram, able to rise above private attachment and withdraw resolutely — the noble person can achieve this (being "fond of what is left behind" yet still able to relinquish it), and so it is auspicious; the petty person cannot let go of private attachment, and so it is "not auspicious" (unable to do so). This is precisely the dividing line between the noble person and the petty person in withdrawal — the noble person can relinquish what he is fond of and withdraw calmly, while the petty person is burdened by private attachment and cannot free himself.
The fifth line (Nine at the Fifth): "Admirable withdrawal — holding to correctness brings good fortune." An admirable withdrawal, and holding to correctness brings good fortune. The fifth line, firm, vigorous, central, and correct, occupies the position of honor; its withdrawal is a consummately perfect "admirable withdrawal" — in accord with the times and holding fast to correctness, calm, dignified, and precisely fitting. This is the supreme level of withdrawal, precisely according with the meaning of the Tuan commentary's "the firm line occupies its proper place and finds response, acting in accord with the times."
The top line (Nine at the Top): "Abundant withdrawal — nothing is unfavorable." An expansive, self-possessed withdrawal, in which nothing is unfavorable. The top line sits at the very summit of the hexagram, far removed from the yin lines below, its withdrawal the most thorough and most transcendent (the character "fei," abundant, is also read as connected to "flying," and interpreted as ease and free roaming). This is the consummate state of withdrawal — utterly transcending contention and strife, at ease and self-possessed, with nothing unfavorable. Fan Li's setting sail upon the Five Lakes, withdrawing once his achievement was complete, comes close to this state of "abundant withdrawal."
The six lines of the hexagram Dun, progressing from the danger of "withdrawal at the tail" in the first line (withdrawing too late) to the favorableness of "abundant withdrawal" in the top line (withdrawal perfected), unfold layer upon layer to reveal for us the different levels of the wisdom of "withdrawal" — withdrawal must come early (guarding against "withdrawal at the tail"), withdrawal must hold to correctness (like being "bound with yellow ox-hide"), withdrawal must be decisive (guarding against "withdrawal entangled"), withdrawal must be able to relinquish (prizing "withdrawal though fond of what is left behind"), withdrawal must accord with the times while holding to correctness (attaining "admirable withdrawal"), and withdrawal must be thoroughly transcendent (reaching "abundant withdrawal"). Through these six layered levels of its lines, the hexagram Dun, to which Minor Heat corresponds, expounds the wisdom of "knowing withdrawal at the height of flourishing" to its fullest.