Chapter One: The Original Meaning of "Major Snow" — A Universe Sealed by Flourishing Snow

I. Why Is "Major Snow" Called "Major Snow"$10

Before entering into the specifics of Major Snow, we must first fix our gaze upon the two characters da xue themselves. Why was it necessary, after already having "Minor Snow" (Xiao Xue), to institute a "Major Snow"$11 What exactly does the word da ("major," "great") signify here$12

The Yuan dynasty scholar Wu Cheng, in his Collected Explanations of the Seventy-Two Pentads of the Monthly Ordinances, writes under the entry for Major Snow: "Major Snow is a nodal term of the eleventh month. Da means 'flourishing'; at this point, the snow has reached its flourishing." Though this gloss dates from a later era, it faithfully transmits the understanding of Major Snow stretching back to high antiquity and serves as our most direct key to interpreting this solar term. "Da means flourishing" — the da here denotes not largeness in volume or area but sheng — "flourishing" in degree, a state of plenitude, fullness, and depth. "At this point, the snow has reached its flourishing" — by this solar term, snow truly falls in grand profusion and accumulates in deep layers.

Why did the ancients use da ("great") to express sheng ("flourishing")$13 This actually touches upon an extremely ancient linguistic tradition. In pre-Qin vocabulary, da was frequently employed to indicate a state of fullness, plenitude, and culmination. In the hexagrams Da You ("Great Possession"), Da Zhuang ("Great Vigor"), Da Xu ("Great Accumulation"), and Da Guo ("Great Excess"), the da in each case denotes not mere physical size but grandeur of momentum and thickness of accumulation. The da of "Major Snow" stands in this very tradition — it tells us that at this moment, the snow phenomenon has progressed from its "initial condensation, not yet flourishing" at Minor Snow into the stage of "flourishing and capable of accumulation."

And what, then, is "snow"$14 The Shuowen Jiezi (Explaining Graphs and Analyzing Characters) glosses xue (snow) as follows: "Snow: congealed rain; that which pleases things. From yu (rain); hui phonetic." Xu Shen's explanation here is profoundly illuminating. "Congealed rain" — snow is solidified rain, water transformed from liquid to solid by bitter cold. This accords perfectly with the water virtue and supreme yin to which Major Snow belongs. And "that which pleases things" (shuo wu) — the shuo is a loan for yue ("to gladden"), meaning to moisten, delight, and nourish all things so that they find their proper sustenance. Snow is not destructive, not annihilating, but "pleasing to things" — it brings all things nourishment and repose. This single word shuo already reveals the most ancient root of the concept of "auspicious snow": in the ancients' hearts, snow was never merely a symbol of cold but also a bestowal of nurturing grace.

II. From "Minor Snow" to "Major Snow": A Process of "Flourishing"

To truly grasp the da of "Major Snow," one must set it in contrast with "Minor Snow."

Minor Snow is the mid-term of the tenth month (by the positioning of solar terms within the month, Minor Snow is the mid-term of early winter, while Major Snow is the nodal term of midwinter). At Minor Snow, the snow begins to fall but has not yet flourished; the ground is not deeply cold, and the snow melts almost as it lands, unable to accumulate. The Collected Explanations says of Minor Snow: "Rain, compressed by cold qi, congeals into snow. Xiao ('minor') is a term for 'not yet flourished.'" — "Minor" means the snow has not yet reached its zenith.

By Major Snow, circumstances are fundamentally different. The yin qi is deeper, the terrestrial cold more severe; snow falls and can accumulate, accumulates and can grow thick, producing the image of "snow flourishing." From "minor" to "major," from "not yet flourished" to "flourished" — what is embodied here is precisely the process by which yin qi advances toward its ultimate extreme during the midwinter month.

Here lies an extremely important philosophical question: Why did the ancients distinguish "Minor Snow" from "Major Snow" with such precision, instituting two progressive solar terms for the same phenomenon (snowfall)$15

The answer is this: in the ancients' cosmology, the transformation of Heaven and Earth's qi proceeded with rhythm, gradation, and process — it was never abruptly completed. The intensification of yin qi was not accomplished at a stroke but deepened step by step, thickening layer by layer. Minor Snow marks the "initial flourishing" of yin qi; Major Snow marks its "ultimate flourishing." Through the progressive pairing of "minor" and "major," the ancients precisely captured and marked the trajectory of yin qi from shallow to deep. This sensitivity to and respect for "process" is the very embodiment of the ancient spirit of "reverently bestowing the seasons": the Way of Heaven is not a series of isolated instants but a continuous, unbroken, node-upon-node stream. What the ancients sought to do was to erect precise navigational markers upon this stream.

III. "Storing": The Core Virtue of Major Snow

If the core of da is "flourishing," then the core virtue of the season in which Major Snow falls is a single word: cang — "storing."

The Record of Rites (Li Ji), in its "Monthly Ordinances" (Yue Ling), sets forth the virtues of the four seasons in their overarching framework: "Spring engenders, summer grows, autumn gathers, winter stores." Major Snow falls in midwinter, when the virtue of "winter storing" is at its deepest and most exemplary. "Storing" is not perishing, not ending, but gathering in, lying dormant, and nourishing — taking the essence of a year's growth and harvest and storing it deeply away, sealing it tight, to await the next year's renewal.

The Wenyan commentary on the Kun hexagram in the Book of Changes states: "When Heaven and Earth transform, grasses and trees flourish; when Heaven and Earth close, the worthy person withdraws into concealment." Once Heaven and Earth's qi enters a state of closure and storage, even the worthy must retire and lie low. The Major Snow season is precisely this period of "Heaven and Earth closing." The vitality of all things has not vanished but has withdrawn to its deepest, most hidden place — stored in the roots, stored in the seeds, stored underground, stored in the depths of supreme yin.

Why is "storing" so important$16 Because without storing, there can be no life the following year. This is the most straightforward yet most profound truth the ancients derived from observing nature: if seeds do not pass through a winter of deep storage, they will struggle to break through the soil in spring; if trees do not undergo a winter of nourishment, they will struggle to put forth branches in spring. Storing is the precondition for life; closure is the preparation for opening. The "sealing by flourishing snow" of Major Snow appears outwardly as Heaven and Earth's most austere and locked-down moment, yet in truth it is the moment when Heaven and Earth plan furthest ahead, amassing strength for the year to come.

This brings us to Major Snow's most essential dialectic: within supreme stillness lies supreme motion; within supreme yin lies supreme yang; within closure lies vitality. This dialectic will run throughout the entire length of this article.