Chapter Ten: Agriculture and Human Affairs -- When Spring Thunder Sounds, Farm Work Begins

I. "Once Jingzhe Has Passed, Spring Plowing Cannot Rest"

If the preceding chapters addressed the significance of Jingzhe on the planes of philosophy, astronomy, and phenology, this chapter addresses its most tangible meaning, the one most directly affecting livelihood: Jingzhe is the marker for the beginning of spring plowing.

China has many agricultural proverbs linking Jingzhe to farming, the most widely known being: "Once Jingzhe has passed, spring plowing cannot rest," "If you don't plow at Jingzhe, within three to five days you'll regret it," and "When the ninth period ends and willows flower, all farm work arrives at once." These homespun sayings express a fundamental fact: Jingzhe marks the true beginning of the year's agricultural work.

Why Jingzhe$15 Because Jingzhe signals the rise in air temperature and soil temperature. After the clap of spring thunder, the weather warms, the soil thaws, and conditions are right for plowing and planting. To miss this window is to fall behind in the farming season and imperil the year's harvest. For the ancestors who lived by agriculture, Jingzhe was not an abstract calendrical concept but a concrete "mobilization order" -- it told every farmer: the restful winter is over; it is time to go to the fields!

This grounds all the philosophical meaning we discussed earlier in the most basic agricultural practice. The "jing" of "Jingzhe" rouses not only the creatures underground but also the farmers in the fields. Dormant creatures are startled awake by spring thunder and emerge from the earth; farmers are startled awake by spring thunder and go out to labor. Between Heaven and humanity, at the Jingzhe solar term, the most tangible synchronization is achieved. The ancients observed the awakening of dormant creatures essentially to find, for their own farming, a basis in heavenly timing -- if even the dormant creatures have come out, the soil temperature must be sufficient for planting.

II. The Ultimate Fulfillment of "Respectfully Delivering the Seasons"

In the introduction we cited the ideal of "respectfully delivering the seasons" from the Book of Documents. If the entire system of solar terms is a product of this ideal, then Jingzhe is its most critical "fulfillment."

Why$16 Because among the twenty-four solar terms, Jingzhe is the one directly linked to "spring plowing" -- the single most important agricultural activity. The core purpose of "delivering the seasons" is to tell the people "when to sow." And the time to sow falls precisely around Jingzhe. If the timing is wrong -- sowing too early when it is still cold, the seeds will freeze; sowing too late past Jingzhe, the farming season will be missed. Accurately determining Jingzhe was therefore the most critical and demanding task in the sacred enterprise of "respectfully delivering the seasons."

This explains why the ancients took such pains to determine Jingzhe through multiple methods -- shadow measurement, stellar observation, phenological verification -- and repeatedly confirmed their findings. The livelihoods of millions depended on it; the survival of entire communities hung in the balance. Determining Jingzhe was not an academic exercise but a matter of life and death. The high regard in which the ancients held Jingzhe ultimately stemmed from agriculture's absolute dependence on time.

The Book of Songs, in "Qi Yue" ("Seventh Month") of the Bin Feng section, describes the year's agricultural cycle in detail: "In the third day-count, attend to the plowshare; in the fourth day-count, lift the foot" -- in the first month of the Xia calendar, repair the farming tools; in the second month, begin going to the fields (literally, "lift the foot," ju zhi, meaning to step into the field). The "fourth day-count" here roughly corresponds to the mid-spring second month of Jingzhe. This shows that already in the era of the Book of Songs, the ancients took mid-spring as the start of the plowing season. The phrase "lift the foot" is especially vivid -- the farmer lifts a foot, strides toward the field, and begins the year's hard labor. That single lifted foot is the most tangible answer to the summons of Jingzhe's spring thunder.

III. Jingzhe and "Rousing the Insects": Phenological Wisdom in Agriculture

Jingzhe rouses not only creatures beneficial to farming but also harmful ones. This introduces an interesting dimension of agricultural life at Jingzhe -- coping with pests.

Around Jingzhe, as dormant creatures awaken, various pests also begin to stir. The ancients noticed this early on and developed customs and wisdom in response. For example, in some regions, Jingzhe customs include "frying the insects" or "beating the petty person" -- essentially psychological responses and symbolic acts of expulsion against the revival of pests at Jingzhe. Farmers would also take advantage of the brief window before pests proliferated to plow and clear fields, keeping pest damage to a minimum.

Behind this lies a simple yet profound phenological wisdom: follow the heavenly seasons, seek advantage and avoid harm. Jingzhe rouses all things, among which are beneficial creatures (like the earthworm that loosens soil) and harmful ones (like crop-eating insects). The wise farmer does not blindly fight against nature but follows nature's rhythms, doing the right thing at the right time -- plowing when it is time to plow, clearing pests when it is time to clear them. This attitude of "following heavenly timing while doing one's human best" is the essence of China's traditional agrarian wisdom.

IV. The Human Stirring: From Dormancy to Rising as a Life Metaphor

Jingzhe's significance for human affairs extends beyond agriculture. It is a profound metaphor for the stirring of the human spirit.

Winter is a season of dormancy -- not only for insects but for people as well. In winter, during the farming off-season, people rest and recuperate, storing energy, just as dormant creatures store vitality underground. When Jingzhe arrives and spring thunder sounds, it is the call for people to emerge from dormancy, to strive and advance. If winter is "storing," then Jingzhe is the beginning of "movement" -- the moment when the year's struggles and labors formally commence.

This transition from "dormancy" to "rising" holds deep lessons for every person. Life, too, has its own "winters" and "Jingzhe moments." In periods of adversity, frustration, or building strength, we are like hibernating creatures, turning inward, storing power, waiting for the moment -- this is "zhe." When the time is ripe and opportunity arrives, we must rise like the dormant creature at the sound of thunder, surging into action, seizing the moment, giving our all -- this is "jing." The capacity to bend and to extend, to hide and to move -- to hibernate when hibernation is called for (nourishing strength), and to surge when surging is called for (striving forward) -- this is the life wisdom that the Jingzhe solar term bestows upon us. We shall deepen this reflection in the dedicated chapter on the "Way of bending and stretching."