Chapter Twelve: Nourishing Body and Mind -- Cold Dew's Advice on Warding Off Cold and Moistening Dryness

I. "At White Dew, Bare Not the Body; at Cold Dew, Bare Not the Feet": Folk Wisdom on Preventing Cold

A widely known proverb captures Cold Dew's core health advice:

"At White Dew, bare not the body; at Cold Dew, bare not the feet."

Why does Cold Dew specifically stress "bare not the feet"$5 The feet are the body's most distal extremity, farthest from the heart, with relatively weak circulation, and situated at the body's lowest point -- "cold rises from the feet." Traditional Chinese medicine holds that the feet contain numerous meridian points connected to the whole body; when the feet are chilled, cold qi travels upward along the meridians, affecting the entire system.

This proverb also embodies Cold Dew's "gradual, season-following" wisdom: White Dew says "bare not the body"; Cold Dew says "bare not the feet" -- a clear progression marking the step-by-step deepening of defense against cold, mirroring the gradual transition of dew from "white" to "cold."

II. Nourishing Yin and Moistening Dryness: Counteracting "Autumn Dryness"

Beyond guarding against "cold," Cold Dew also requires guarding against "dryness." In late autumn, rainfall decreases, the air grows dry, and metal-qi's contracting, descending nature easily depletes bodily fluids. The traditional remedy is to "nourish yin and moisten dryness" -- consuming foods that nourish yin, generate fluids, and moisten the lungs, such as pears, lotus root, lily bulbs, snow fungus, sesame, and honey.

This "nourishing yin and moistening dryness" embodies the deep wisdom of "nourishing yin to accord with yin": as heaven and earth's qi trends toward contraction and storage (yin), human health cultivation should follow suit -- drawing in, nourishing fluids, so that the body's "yin" is cultivated and accumulated in step with heaven and earth's "yin."

III. Drawing Inward the Spirit: Cultivating the Emotions

The Huangdi Neijing (Suwen, "Treatise on Regulating the Spirit According to the Four Seasons") offers a classic formulation:

"The three months of autumn are called 'leveling and settling.' The heavenly qi grows brisk; the earthly qi grows bright. Go to bed early and rise early, keeping time with the rooster. Let the will be at peace, so as to moderate autumn's severity. Draw inward the spirit-qi, so that autumn's qi may be even. Do not direct the will outward, so that the lung-qi may be clear. This is the response to autumn's qi -- the way of nourishing 'gathering.'"

The core message -- "let the will be at peace," "draw inward the spirit-qi," "do not direct the will outward" -- teaches that in autumn, the spirit should shift from summer's outward exuberance to inward composure and stillness. The phrase "to moderate autumn's severity" (yi huan qiu xing) is especially telling: autumn's killing qi (qiuxing) acts not only on grasses and trees but on human emotions, producing the "autumnal melancholy" (beiqiu). The Neijing's remedy is to restore the will to equanimity, thereby softening and dissolving the season's bleak influence.

IV. "Stripping" and the Ultimate Wisdom of Health Cultivation

Elevated to the philosophical plane, Cold Dew's ultimate wisdom of health cultivation is the embodied practice of the Bo hexagram's principle of "stripping."

At Cold Dew, the body's cultivation should follow the stripping momentum -- actively drawing inward, storing away, nourishing yin, recalling the yang qi that was dispersed and expended during summer. This may seem "passive" retreat, yet it is the most adroit form of "active" preparation -- it is storing energy for next year's "return of one yang."

This is the Bo hexagram's "great fruit uneaten" applied to health: the vital essence that a person preserves through drawing inward and nourishing yin at Cold Dew is like the solitary yang at the top of the hexagram -- it is the seed from which next year's vitality will spring. "In spring and summer, nourish yang; in autumn and winter, nourish yin" -- what is "nourished" in autumn and winter is precisely this "great fruit" of life's essence.