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The Highest Good Is Like Water: The Nourishing Virtue of Yushui and How Heaven-One Begets Water

This article offers a deep reading of Yushui (Rain Water) among the Twenty-Four Solar Terms, drawing on pre-Qin Confucian and Daoist philosophy, etymology, and astronomical phenology. Through an examination of the original meanings of the characters "雨" (rain) and "水" (water), the astronomical positioning of the sun at 330° of celestial longitude, and the three phenological signs of the term, combined with Laozi's teaching that 'the highest good is like water,' Guanzi's view of water as the origin of all things, and the Book of Changes' vision of Heaven-One begetting water and clouds moving to bring forth rain, the essay reveals the virtue of water and the meaning—between Heaven and humanity—of spring rain nourishing all things.

Xuanji Editorial Board February 18, 2026 99 min read PDF Markdown
The Highest Good Is Like Water: The Nourishing Virtue of Yushui and How Heaven-One Begets Water

Chapter 16 A Dedicated Chapter of Philosophy on "Why": Why Water Is a Metaphor for the Way, and Whence Rain Comes

1. Why Did the Ancients Alone Choose "Water" as a Metaphor for the Way$23

In this dedicated chapter, we return to the most fundamental "why" questions of this entire essay, undertaking a concentrated philosophical inquiry. The first question is: why, among all the ten thousand things of Heaven and Earth, did the ancients choose "water," and water alone, as a metaphor for that highest, deepest, most ineffable "Way"$24

We have already touched upon various aspects of the answer throughout this essay; here let us bring them together systematically. Water is best suited as a metaphor for the Way because so many of its qualities align so closely with the very nature of the Way:

First, the Way "excels in benefiting the ten thousand things without contending," and so does water. The Way generates and nurtures the ten thousand things without claiming them as its own; water nourishes the ten thousand things without demanding return—both embody the highest virtue of "generating without possessing, acting without presuming."

Second, the Way "dwells below without contending," and so does water. The Way is content to remain lowly, never contending with the ten thousand things; water is content to remain lowest of all, and thereby ultimately becomes king of the hundred valleys—both embody the dialectical wisdom that "it is only because one does not contend that nothing under Heaven can contend with one."

Third, the Way "overcomes the hard and strong through softness and weakness," and so does water. The Way overcomes the formed through the formless, overcomes the hard and strong through softness and weakness; water gallops through the utmost hardness through its utmost softness, enters where there is no gap through having no substance—both embody the philosophy of life that "the soft and weak belong to the company of life."

Fourth, the Way is "formless and undetermined," and so is water. The Way is shadowy, indistinct, formless, and undetermined; water takes the shape of whatever it meets, forming itself according to whatever it encounters—both embody that primordial state which transcends fixed form, brimming with boundless vitality. This is precisely the deep basis for "Heaven-One begets water": water is the element closest to the Way's nature of "shadowy formlessness."

Fifth, the Way "circulates ceaselessly," and so does water. The Way circulates endlessly without tiring, operating without cease; water never rests day or night, flowing ceaselessly—both embody the vigor of the Way of Heaven's "ceaseless self-strengthening."

It is precisely this fivefold alignment that makes water, among all the ten thousand things of Heaven and Earth, the presence most resembling the Way, most suited to serve as its metaphor. That the ancients chose water as a metaphor for the Way was no arbitrary association, but was grounded in a profound apprehension of water's qualities. Water is the clearest shadow the Way casts within the material world; through observing water, through apprehending water, human beings can most directly grasp that ineffable Way. And the Yushui solar term, as the season when water becomes active once more and most vividly displays its qualities, is precisely our best occasion to grasp the Way through water.

2. Why Was Rain Repeatedly Used as a Metaphor for the Sovereign's Virtue$25

The second question is: why, in Chinese culture, has "rain" been used again and again as a metaphor for the sovereign's grace and virtue$26 "Grace and favor like rain," "spring breeze transforming into rain," "sweet rain," "timely rain"—why have these images comparing virtue to rain taken such deep root in people's hearts$27

The answer lies in this: rain's qualities align remarkably closely with the ideal of "virtuous governance." We have already discussed, in Chapter Five, rain's fourfold character (descending from above, universal and impartial, nourishing without extracting, timely and responsive to need); here let us further reveal the political philosophy behind it.

In the Confucian political ideal, the ideal ruler ought to be like "Heaven" itself—treating the people with the "virtue of loving life," giving without extracting, nourishing without plundering. And Heaven's most direct grace toward the ten thousand things is precisely the sending down of rain. Thus, the most natural analogy for the ideal ruler's virtue is "rain." The ruler bestowing grace upon the people is like Heaven sending rain down to the earth; grace reaching every corner of the realm is like rain and dew shared equally across the land; benevolent governance timely rescuing the people from dire straits is like sweet rain timely reviving withered seedlings. The image of "grace and favor like rain" links the ruler (Heaven on earth) with Heaven (the sovereign of the cosmos) through the very act of "sending down rain"—the ruler emulates Heaven's sending of rain, spreading grace and virtue universally to the people.

At a deeper level, "using rain as a metaphor for virtue" also carries a certain constraint upon and expectation of the ruler. Rain's virtue lies in "impartiality" (reaching everywhere, favoring none) and "timeliness" (falling as needed, neither too early nor too late). To use rain as a metaphor for virtue is to demand that the ruler's grace and virtue likewise be so—reaching every last subject (impartiality), timely rescuing every place of hardship (timeliness). This is both an expectation placed upon the ruler (you ought to nourish the realm as spring rain does) and a constraint upon the ruler (your grace and virtue must not be partial, must not fail to arrive in time). Thus "using rain as a metaphor for virtue" is by no means mere rhetoric, but a profound political philosophy—it takes "the virtue of water," "the virtue of rain," as the standard by which the "virtue of the ruler" in the human realm is measured and expected to conform. The Yushui solar term, as the season when spring rain nourishes all things, is precisely the most vivid real foundation of this political philosophy of "using rain as a metaphor for virtue."

3. Why "Heaven-One Begets Water"—Why Is Water the Beginning of the Ten Thousand Things$28

The third question is the deepest inquiry of this entire essay: why "Heaven-One begets water"$29 Why, in the generative sequence of the Five Phases, does water rank first, regarded as the beginning of the ten thousand things$30

We have already touched upon the answer from multiple angles; here let us offer a final, and deepest, synthesis. The deep basis for "Heaven-One begets water" lies in water's essential kinship with "the primordial state."

In Chinese philosophy's imagining of the origin of the cosmos, that primordial state which precedes the ten thousand things, before chaos had yet divided, is "formless," "undetermined," "flowing," "shadowy and indistinct." Laozi says, "As a thing, the Way is shadowy and indistinct"; the Book of Changes says, "The Changes contain the Supreme Ultimate" (Taiji)—that Supreme Ultimate, that Way, is formless and shapeless, chaotic and undivided. And among all the ten thousand things of Heaven and Earth, the thing that best symbolizes this primordial state of "formless flow" is precisely water. Water has no constant form, takes shape according to whatever it meets, flows without settling—it comes closest to that primordial state, not yet congealed into the concrete ten thousand things, its vitality still latent.

Thus the true meaning of "Heaven-One begets water" is this: in the process by which Heaven and Earth pass from chaos into the ten thousand things, water is the first, and the closest to the primordial state, of all "products" generated. It is the first link in the transition from the formless Way to formed things—it is already a "thing" (having taken on the form of water), yet it remains closest to "nothingness" (having no constant form, flowing without settling). Water occupies the critical threshold between "being" and "non-being," between "the Way" and "things." Precisely for this reason, water is granted the status of "the beginning of the ten thousand things"—it is the first step by which the Way congeals into things, the initial, most vital, primordial source from which the ten thousand things germinate.

Understanding this, we can grasp the ultimate significance of the Yushui solar term within the entire cosmic picture. Each year's Yushui solar term is a miniature reenactment of this beginning of the generation of all things, "Heaven-One begets water": after the chaotic stillness of winter (approaching the shadowy, indistinct state of the primordial), water (the beginning of the ten thousand things) is the first to awaken, the first to flow, and only afterward do the ten thousand things germinate in sequence. Yushui, therefore, is not merely a meteorological solar term, but the true "moment of creation" in a year's cycle of life—it marks the moment when water, "begotten by Heaven-One" and closest to the Way, begins once more its great labor of gestating all things. The water of Yushui is the first shadow the Way casts in spring, the first activation, in the new year, of Heaven and Earth's "virtue of generation."

4. Why Must We Still Ask These "Whys" Today$1

The final "why" concerns ourselves: in this age of advanced science, we already know that rain is the result of condensing water vapor, the product of atmospheric motion—so why should we still ask the ancients' "whys" concerning water, concerning rain$2

Because these inquiries of the ancients touch not upon "how rain forms physically," but upon "what rain means for life, for humanity, for Heaven and Earth." Science answers "how," but does not answer "what it means." And the whole of the ancients' thought concerning water and rain—the highest good is like water, Heaven-One begets water, clouds move and rain is bestowed, yin and yang resonate to produce rain, repaying the root and returning to the origin—answers precisely this question of "what it means."

That we ask these "whys" today is not to negate science, but to supply that dimension of "meaning" which science alone cannot provide. Once we know that rain is condensed water vapor, we gain "knowledge" about rain; but once we apprehend that rain is "the grace born of Heaven and Earth's resonance," is the virtue of "excelling in benefiting the ten thousand things without contending," is the resurrection of "the origin of the ten thousand things"—only then do we gain the "meaning" of rain, and re-establish an emotional, spiritual, and ethical bond with that most ordinary yet most sacred of natural phenomena.

This is precisely the fundamental value of asking these "whys" anew. In an age that has thoroughly "disenchanted" nature, reducing all things to cold physical processes, the ancients' way of thinking—"contemplating the Way through water, regarding rain as grace"—reminds us: nature is not merely an object to be known and exploited, but "the great beauty of Heaven and Earth," to be received with gratitude, with reverent awe, with poetic apprehension. The Yushui solar term, as the ancients' solemn tribute to the virtue of water and the grace of spring rain, is precisely the most concentrated vehicle for this dimension of "meaning." To understand Yushui anew is to relearn how to face, with a heart of gratitude, reverence, and poetry, that spring rain which descends from Heaven and nourishes all things—and this is precisely the wisdom our age lacks most, and needs most.


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Qimen Dunjia · Dayan divination · pre-Qin classics

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