Nurturing Spring within the Cold: The Ascending Hexagram of Lesser Cold and the Prescience of Birds
This article offers a multidimensional exploration of Lesser Cold (Xiaohan) from the perspectives of pre-Qin Confucian and Daoist philosophy, etymological origins, astronomical observation, and phenological reasoning. It reveals the 'firm force gradually ascending' imagery of the Lin (Approach) hexagram in the twelfth month, the wisdom of birds — wild geese turning north, magpies building nests, pheasants calling — as creatures that 'sense yang and move first.' It examines the paradox of why 'Lesser Cold is often colder than Greater Cold,' and elucidates the spirit of the La sacrifice — offering thanks to origins in the depth of winter — and the ancient cosmology of the unity of Heaven and humanity.
Chapter Three: The Final Month of Winter in the Monthly Ordinances of the Book of Rites: A Complete Cosmological Portrait under the Reign of Water's Virtue
I. The Nature of the Monthly Ordinances: A Comprehensive Guide for Action between Heaven and Humanity
Among all pre-Qin texts, the most detailed and systematic description of Lesser Cold and the final month of winter in which it falls is found in the "Monthly Ordinances" (Yueling) chapter of the Book of Rites (Liji) — a text whose content closely parallels the "Records of the Final Month of Winter" in the Annals of Lü Buwei (Lüshi Chunqiu); scholars generally consider them to share a common source. The Monthly Ordinances are not a simple calendar record but a complete guide for action bridging Heaven and humanity — they specify, at each temporal node, what the celestial phenomena are, what the earth's creatures are doing, and what human affairs ought to be conducted, all three interlocking as an indivisible whole.
The agricultural twelfth month in which Lesser Cold falls belongs, in the fourfold seasonal division, to "the final month of winter" (jidong zhi yue). "Ji" means last, final. A year has four seasons, each of three months, designated respectively as meng (first), zhong (middle), and ji (last). The three months of winter are thus: Early Winter (tenth month), Mid-Winter (eleventh month, containing the winter solstice), and Late Winter (twelfth month, containing Lesser Cold and Greater Cold). Late Winter is winter's end, the year's close — the deepest, coldest stretch as the year reaches its conclusion.
The Monthly Ordinances paint a complete cosmological portrait for the final month of winter, opening with: "In the final month of winter, the sun is in the Maiden constellation; at dusk the Bond constellation culminates; at dawn the Base constellation culminates."
These three statements identify the constellation the sun occupies, the constellation at the meridian at dusk, and the constellation at the meridian at dawn. These stellar positions were the most reliable astronomical evidence by which the ancients, in an age without calendars, determined the season. Observing the rotation of the constellations, they knew the progression of the year.
II. Water's Virtue Reigns: The Complete Five-Phase Portrait of Late Winter
Immediately following, the Monthly Ordinances unfold a meticulously detailed web of Five-Phase correspondences for the final month of winter: "Its days are ren and gui; its sovereign is Zhuanxu; its spirit is Xuanming; its creatures are the shelled; its tone is yu; its number is six; its flavor is salt; its scent is decay; its sacrifice is to the road; the offering begins with the kidneys."
This passage constructs an extraordinarily precise system of cosmic correspondences. It tells us: in this coldest month containing Lesser Cold and Greater Cold, the entire universe operates in coordinated unity around "Water's Virtue." Let us examine each element in depth to see how the ancients threaded the Heavenly Stems, sovereign deities, animal categories, tones, numbers, flavors, scents, and sacrificial practices all onto the single thread of "Water."
"Its days are ren and gui" — The final month of winter corresponds to the Heavenly Stems ren and gui. Among the ten Heavenly Stems, ren and gui belong to Water. The correspondence between the ten Heavenly Stems and the Five Phases is: jia and yi belong to Wood (spring), bing and ding to Fire (summer), wu and ji to Earth (late summer/center), geng and xin to Metal (autumn), ren and gui to Water (winter). This system tightly links time (Heavenly Stems) with material properties (Five Phases), forming one of the basic frameworks of pre-Qin cosmology.
"Its sovereign is Zhuanxu" — The presiding sovereign of the final month of winter is Zhuanxu, one of the legendary Five Emperors of high antiquity, styled Lord of High Yang, the Emperor of Water's Virtue. Spring's emperor is Taihao (Wood), summer's is Yandi the Flame Emperor (Fire), the center's is the Yellow Emperor (Earth), autumn's is Shaohao (Metal), and winter's is Zhuanxu (Water).
"Its spirit is Xuanming" — The attending spirit of the final month of winter is Xuanming, the Water Spirit and Winter Spirit of ancient mythology. "Xuan" means dark, abstruse, deep; "ming" means dim, obscure. Together, "Xuanming" paints precisely the character of winter days — dim skies, all things in hibernation, everything retreating into unfathomable depths. Naming the winter spirit Xuanming captures perfectly winter's quality of concealment, its mysterious and remote nature.
Why is there both a "sovereign" and a "spirit"$24 This reflects a core concept of pre-Qin political philosophy: governance requires hierarchical division of labor. The sovereign is the supreme authority — Zhuanxu determines winter's grand direction and establishes the principles of Water's Virtue. The spirit is the specific executor — Xuanming carries out the sovereign's will and enacts the work of hidden storing. So it is in heaven; so it is in the human realm.
"Its creatures are the shelled" — The representative animal category of the final month of winter is "shelled creatures" (jie chong) — animals with hard shells, such as turtles, soft-shell turtles, mussels, and clams. In the pre-Qin classification of living things, creatures were divided into five great categories: scaled (fish, corresponding to spring), feathered (birds, summer), naked (humans, center), furred (beasts, autumn), and shelled (hard-shelled animals, winter). Shelled creatures correspond to winter because their shells represent "enclosure" and "sealed storage" — turtles, mussels, and clams all protect soft life deep within hard outer shells, perfectly matching winter's theme of "closure and concealment."
"Its tone is yu" — The musical tone of the final month of winter is yu. Among the five tones (gong, shang, jue, zhi, yu), yu is the most low and distant, its quality resonant with water's depth and downward-sinking character.
"Its number is six" — The symbolic number of the final month of winter is six. In the pre-Qin numerological system, one and six belong to Water, two and seven to Fire, three and eight to Wood, four and nine to Metal, five and ten to Earth. Six belongs to Water, hence it is assigned to winter. Notably, the Yijing uses six as the number for yin lines (the number of old yin is six) — winter being the season of yin's greatest predominance, assigning the yin number six to winter carries its own deeper significance.
"Its flavor is salt" — The flavor of the final month of winter is salty. Among the five flavors (sour, bitter, sweet, pungent, salty) and their Five-Phase correspondences, salty belongs to Water. The most immediate association is the saltiness of seawater — the greatest body of water is the ocean, and the ocean is salt. Salt enters the kidneys (discussed in the health cultivation chapter below), and the kidneys in turn correspond to Water among the five organs — thus salt, water, kidneys, and winter are linked in a single current.
"Its scent is decay" — The scent of the final month of winter is "decay" (xiu) — the smell of decomposition and age. Among the five scents, the decayed scent corresponds to Water and winter. Why decay$25 Because in winter all things wither and return to the earth; fallen leaves and rotting grasses, soaked by moisture and sealed beneath frozen soil, gradually transform into humus, nurturing fertility for the coming year. "Decay" may seem like the emanation of death, yet it is in fact a way station in the cycle of life's "return from death to life" — decomposition is not an ending but a cradle for new life.
"Its sacrifice is to the road" — The sacrificial object of the final month of winter is the Road Spirit (xing shen). The ancients recognized "Five Sacrifices" — door, hearth, center of the house, gate, and road — corresponding to the four seasons and the center. One interpretation: at year's end, people are traveling back and forth, visiting relatives and trading, so they sacrifice to the Road Spirit to pray for safe journeys.
"The offering begins with the kidneys" — The first organ offered in sacrifice is the kidney. Among the five organs and the Five Phases, the kidney belongs to Water. Winter belongs to Water, hence the sacrifice begins with the Water-associated kidney. The kidney governs the storage of vital essence, governs Water, governs winter — it is the commander-in-chief of "sealed storage" within the human body.
III. The Son of Heaven's Conduct in Late Winter: Wearing Black in Accordance with Water's Virtue
The Monthly Ordinances prescribe in great detail the Son of Heaven's conduct during the final month of winter, with the core principle being correspondence with "Water's Virtue" in all things. According to the Five-Phase color scheme, winter belongs to Water, and Water's color is black (xuan). Therefore the Son of Heaven's entire manner of living during this month takes black and dark hues as its keynote.
In the final month of winter, the Son of Heaven is to dwell in the winter-associated quarter (the northern chamber of the Bright Hall), ride a black chariot, drive black horses, fly a black banner, wear black robes, and bear dark jade. Why must the Son of Heaven be clothed entirely in black during winter$26 This is not an aesthetic preference but a solemn cosmological requirement — winter belongs to Water, and Water's color is black. The Son of Heaven, as intermediary between Heaven and Earth, must align all his actions with the cosmic principle currently in force.
This contains an extraordinarily profound political-philosophical concept: the ruler does not govern the realm according to personal will but must govern in conformity with the Way of Heaven. Every action of the Son of Heaven — what color he wears, what chariot he rides, where in the palace he resides — cannot be left to whim but must strictly follow Heaven's directives. During the deepest winter of Lesser Cold and Greater Cold, the Son of Heaven, clad entirely in black and seated in the northern chamber, is nothing less than the incarnation of Water's Virtue — the incarnation of winter itself — in the human realm.
IV. Late Winter Decrees: Year-End Affairs and Governance in Accordance with the Season
Late Winter is the year's end, and the Monthly Ordinances accordingly assign to this month a great many tasks of "concluding the year and preparing for the coming spring." Several of the most important merit close examination.
First is the great year-end sacrifice — the La. The Monthly Ordinances explicitly state for the final month of winter that the Son of Heaven is to provide offerings for Heaven Above, the Supreme Deity, the altars of soil and grain, and all the hundred spirits, and that the four overseers are to collect firewood for the suburban and temple sacrifices and the hundred rites. This grand sacrifice at year's end is the "La sacrifice" that we shall discuss at length in a dedicated chapter below. As the year draws to a close, the ancients would offer thanks to all the gods and spirits of heaven and earth for the year's blessings — this is the great principle of "repaying origins and returning to beginnings" (baoben fanshi).
Second are preparations related to agriculture. Although late winter is the agricultural off-season, farmers do not remain entirely idle. The Monthly Ordinances for this period contain the meaning of "commanding farmers to deliberate on paired plowing for the coming year, repair the plowshares, and ready the field implements." This is of great importance: in the coldest, most idle season of the year, the ancients were already preparing for spring plowing. This is the wisdom of "what is planned in advance succeeds" and echoes Lesser Cold's overarching theme of "nurturing spring within storage" — on the surface, rest; beneath the surface, gathering strength.
Third is the command for officials to conduct the "Great Exorcism" (Da Nuo), driving out pestilential energies and welcoming the new year. The Monthly Ordinances record for late winter: "Command the officials to perform the Great Exorcism, to split sacrificial animals at the four gates, and to fashion earthen oxen to send away the cold." This "fashioning earthen oxen to send away the cold" is especially thought-provoking: in the coldest part of the year, the ancients were already performing ceremonies to "send off the cold" and "welcome the spring oxen"! This confirms once more: the ancients knew well that at the very extremity of cold lies the imminent arrival of spring.
V. The Monthly Ordinances' Warning: Consequences of Issuing Untimely Decrees in Late Winter
After describing what should be done in the final month of winter, the Monthly Ordinances sternly warn of the consequences of issuing "untimely decrees": "If in the final month of winter autumn's decrees are issued, white dew will descend too early, shelled creatures will become monstrous, and the people of the four borders will flee into fortified towns. If spring's decrees are issued, embryos and young will suffer much harm, the state will be plagued by stubborn diseases — this is called 'going against.' If summer's decrees are issued, floods will damage the state, timely snows will not fall, and ice will thaw and melt."
The logic behind these warnings rests on a core belief: each season has its particular qi, and the nature of political decrees also carries its particular qi. Winter's decrees should be those of "storing," "closing," and "securing" — consonant with Water's Virtue of concealment and latency. If, during the season that most demands closure and storage, one issues decrees of spring's "generating" or summer's "dissipating," the violent clash between the qi of "storing" and "dissipating" will cause climatic and agricultural disasters.
From a modern perspective, such causal relationships lack rigorous scientific basis. But viewed from another angle, these warnings contain a profound wisdom of governance and survival: all things have their proper time for storing. At the coldest time of year's end, when heaven and earth are closing down and accumulating strength, the human world should synchronize — resting, gathering, and conserving strength for the coming spring, rather than acting rashly or dissipating prematurely.