A Clap of Spring Thunder: The Awakening of Life and the Way of Dormancy in the Jingzhe Solar Term
This article offers a deep reading of Jingzhe (Awakening of Insects) among the Twenty-Four Solar Terms, drawing on pre-Qin Confucian and Daoist philosophy, etymological origins, astronomy, and phenology. Through an examination of the historical renaming from 'Qizhe' to 'Jingzhe,' an analysis of how spring thunder rouses hibernating creatures, and the cosmic vision of the Zhen (Thunder) hexagram's 'the sovereign emerges from Zhen' in the Book of Changes, the essay reveals the critical threshold at which life transitions from dormancy to vigorous action, illuminating the ancient Way of bending and stretching to preserve one's being.

Chapter Five: The Zhen Hexagram of the Book of Changes -- The Sovereign Emerges from Zhen; Thunder Moves and All Things Are Born
I. The Zhen Hexagram: The Trigram of Thunder
To truly understand Jingzhe, one must delve into the Zhen hexagram of the Book of Changes. For the central image of Jingzhe is thunder, and in the trigram system of the Yijing, the trigram that specifically symbolizes thunder is Zhen.
The trigram image of Zhen is ☳ -- one yang line below, two yin lines above. This image is remarkably evocative: a single yang line stirs beneath two yin lines, symbolizing yang qi rising vigorously from below, breaking through the suppression of yin qi, and shaking upward. Is this not precisely the scene at Jingzhe$35 The yang qi that lay dormant underground through winter, upon reaching mid-spring, suddenly surges forth, breaks through the cold yin of the surface, and manifests as thunder, shaking heaven and earth.
The Shuogua commentary (Explanation of the Trigrams) says: "Zhen is thunder." It also says: "Zhen means movement." The essence of the Zhen trigram is "movement" -- it represents motion, shaking, surging forth, starting up. And this "movement" is not gentle or gradual but swift and explosive, like a crash of thunder suddenly splitting the sky.
The Shuogua further states: "All things emerge from Zhen. Zhen is the east." All things "emerge" from the Zhen trigram -- how perfectly this word "emerge" accords with the "qi" (opening) of "Qizhe" and the theme of Jingzhe as the "awakening of all things"! The Zhen trigram corresponds to the east, to spring, to the season when all things sprout and break through the earth. One can say that the Zhen trigram is the corresponding hexagram image of Jingzhe in the Book of Changes, capturing in the most condensed symbolic form the essential nature of Jingzhe: "thunder moves and all things are born."
II. "The Sovereign Emerges from Zhen": The Master Switch of Cosmic Life
The Shuogua commentary contains a breathtaking statement that is the central key to understanding both the Zhen trigram and Jingzhe: "The sovereign emerges from Zhen" (di chu hu zhen).
What do these four characters mean$36 "The sovereign" (di) is the master of the cosmos, the most fundamental creative force between heaven and earth. "Emerges from Zhen" means that this force issues forth, sets out, and activates from the Zhen trigram. In other words, the stirring of all cosmic life, the genesis of all vitality, has its total beginning and total activation in "Zhen" -- in the movement of thunder, in that surging yang qi.
The Shuogua then describes the complete annual cycle using the Eight Trigrams: "The sovereign emerges from Zhen, is arrayed in Xun, is made visible in Li, is served in Kun, speaks with delight in Dui, does battle in Qian, labors in Kan, and achieves completion in Gen." This is a complete cycle of cosmic life: beginning from Zhen (the start of spring, the birth of all things), passing through Xun (all things purified and arrayed), Li (all things made visible and flourishing), Kun (all things nourished), Dui (all things joyful and mature), Qian (yin and yang do battle), Kan (all things weary and returning to dormancy), and Gen (all things end and begin again). In this cycle, "Zhen" is the starting point, the engine, the master switch that sets everything in motion.
This endows Jingzhe with supreme significance. If "the sovereign emerges from Zhen," and Zhen corresponds to the spring thunder of Jingzhe, then the thunder of Jingzhe does not merely rouse a few hibernating insects -- it is the starting point of the entire cosmic life cycle, the first command issued by "the sovereign" (the creative force) to all things under heaven. The entire year's generating, growing, harvesting, and storing all begin with this single thunderclap. The ancients' awe before Jingzhe's thunder stemmed from precisely this recognition -- what they heard was not an ordinary thunderclap but the opening note of cosmic life, the "sovereign's" first utterance between heaven and earth.
III. "Repeated Thunder, the Image of Zhen; the Noble Person Is Moved to Fearful Self-Examination"
The Great Image commentary on the Zhen hexagram states: "Repeated thunder -- the image of Zhen; the noble person is moved to fearful self-examination" (xian lei zhen, junzi yi kongju xiusheng). "Xian" means repeated, successive. "Repeated thunder" is the image of continuous rolling thunder. The passage says: successive thunder is the image of Zhen; upon observing this hexagram image, the noble person should be filled with fear and engage in self-reflection and self-examination.
This is a profoundly significant statement, revealing the ancients' distinctive attitude toward thunder -- reverence. In the ancients' view, thunder was not merely a sign of yang qi surging forth but a manifestation of Heaven's majesty, a warning and admonition from Heaven to the human world. The rolling thunder seemed as though Heaven were angered, rebuking, reminding. A person of virtue, upon hearing thunder, would not remain unmoved but would feel awe, reflecting on whether any word or deed had been a transgression, whether anything had violated the Way of Heaven.
Why could thunder inspire "fearful self-examination"$37 Because in the cosmology of the unity of Heaven and humanity, Heaven and humans are interconnected and mutually responsive. Heaven's pleasure and anger manifest through natural phenomena; human good and evil likewise resonate with Heaven. Thunder is the most direct, most awe-inspiring manifestation of Heaven's majesty. When thunder sounds, the noble person instinctively turns inward: Have I committed some injustice that has disturbed Heaven$38 This "fearful self-examination" is not a superstitious fear of natural phenomena but an awe before the Way of Heaven -- an exalted spiritual attitude that links one's moral responsibility to the cosmic order.
The spring thunder of Jingzhe is the beginning of these "repeated thunders." When the first thunder of the year sounds, it is for the noble person an occasion for "fearful self-examination" -- at the start of the new year's agricultural endeavors, as yang qi surges and all things awaken, first examine oneself and set one's mind aright, then approach and participate in heaven and earth's nurturing with a purified, reverent spirit. This way of linking the solar terms tightly with moral cultivation is a hallmark of the Confucian interpretation of the seasons, which we shall develop further in the chapter on the Confucian perspective.
IV. "Thunder Startles for a Hundred Li, Yet He Does Not Lose the Sacrificial Ladle and Libation"
The hexagram statement of the Zhen hexagram contains another deeply suggestive passage: "When the thunder comes, there is alarm and trembling (xixi); then laughter and words of cheer (yaya). Thunder startles for a hundred li, yet he does not lose the sacrificial ladle (bi) and the libation of aromatic wine (chang)." "Xixi" describes a state of fearful vigilance; "yaya" describes relaxed, cheerful speech. The "bi" is a ladle used to scoop offerings in ancestral temple sacrifices; "chang" is the aromatic wine used in sacrifice. The passage means: when thunder strikes, one first trembles with fearful vigilance, then can speak and laugh at ease once more. Thunder startles all within a hundred li, yet the person presiding over the sacrifice remains so steadfast that neither the ladle nor the libation wine is dropped.
What grandeur of spirit! This passage praises a composure in the face of upheaval, a constancy in the midst of great change. When earth-shaking thunder arrives, all things tremble and hearts are seized with panic, yet the truly virtuous person of inner fortitude, after the initial moment of awe, swiftly regains composure, poised and unruffled, holding the sacrificial vessels steady without the slightest faltering.
Here lies a profound lesson in cultivation. Thunder symbolizes the sudden upheavals, shocks, and impacts that come from the outside world. Faced with such upheaval, the ordinary person is likely to lose composure and become confused. The cultivation of the noble person is revealed precisely in the ability to "not lose the ladle and libation" in the face of upheaval -- to maintain inner steadiness, proper conduct, and fidelity to what is constant. Jingzhe's thunder awakens all things, a form of violent "movement." Within this "movement," the noble person must be able to hold fast to inner "stillness" and "composure." Stillness within movement, constancy amid change -- this is the supreme state that Chinese philosophy seeks to attain.
From this, we see that the Zhen hexagram offers a twofold lesson: on the one hand, it tells us to follow the "movement" -- to accord with the surging of yang qi and the awakening of life, to engage actively in the new year's labor and striving. On the other hand, it admonishes us to maintain "composure" within movement -- not to let external shaking uproot our inner foundations. This wisdom of cultivating both movement and stillness is a precious spiritual legacy that the Jingzhe solar term bestows upon us.
V. The Image of Thunder in Literature: From the Book of Songs to the Songs of Chu
Thunder is not merely an object of philosophy but also a mother-motif in literature. The poems of the pre-Qin era contain vivid and deeply felt depictions of this phenomenon so charged with power and mystery. Through these literary images we can feel more intimately the complex spirit with which the ancients faced thunder.
The Book of Songs (Shijing), in "Yin Qi Lei" ("Rolling Thunder") from the Shao Nan section, is a celebrated piece that begins with thunder as a stimulus: "Rolling, rolling is the thunder, on the sunny slope of the southern hill. Why must he go from here, never daring to rest$39 O noble lord so earnest, come home, come home!" The phrase "yin qi lei" imitates the deep, awe-inspiring rumble of thunder. The poem takes the rolling thunder beside the southern hill as its opening image to express a wife's longing for her husband, who is away on the king's service. Here thunder serves as both real landscape and emotional catalyst -- the rolling thunder shakes the earth and also shakes the longing wife's heart, stirring her boundless yearning for her distant beloved. The "movement" of thunder and the "movement" of the human heart merge into one.
In "Zhong Feng" ("Gusting Wind") from the Bei Feng section, thunder also appears: "Dark and overcast the sky, rumbling faintly the thunder." "Huihui" imitates the low, rumbling sound of thunder about to break. Overcast skies and distant thunder -- this oppressive, uneasy weather exactly matches the gloom and sorrow of the poem's speaker. Clearly, in the world of the Book of Songs, thunder is frequently used in correspondence with human emotions and moods. The shake of thunder, its distant rumbling, its sudden crash -- all become media through which the poet gives voice to inner feeling. This embodies the literary expression of "Heaven-humanity mutual responsiveness": the stirring of thunder above and the stirring of emotion below are fundamentally connected.
By the time of the Songs of Chu (Chuci), the image of thunder takes on more mythological color and romantic atmosphere. The deities depicted by Qu Yuan in the Nine Songs typically appear accompanied by spectacular visions of thunder, lightning, wind, and cloud. In passages from pieces such as "The Lord amid the Clouds" (Yun Zhong Jun), with their magnificent imagery of "riding the dragon, wheels rumbling, soaring high to the heavens," and their divine landscapes woven from wind, cloud, thunder, and lightning, thunder is elevated to something sacred and sublime. In Qu Yuan's verse, thunder is no longer merely awe-inspiring heavenly power but has become a splendid backdrop for communion between Heaven and humanity, for spiritual journeys to the eight extremities. The rumble of thunder is the prelude to the gods' descent, the most magnificent music between heaven and earth.
From the Book of Songs to the Songs of Chu, the literary image of thunder underwent an enrichment from "realistic lyricism" to "romantic mythology." But whether it is the longing-inducing "rolling thunder" of the Book of Songs or the divine thunder-and-lightning journeys of the Songs of Chu, they share one fundamental quality: thunder is powerful, awe-inspiring, and capable of bridging Heaven and humanity. And Jingzhe's thunder, as the year's first thunderclap, is the very wellspring of all these literary imaginings. When the ancients heard that first spring thunder at Jingzhe, what welled up within them was perhaps precisely this complex blend of awe, emotion, wonder, and poetic feeling -- which ultimately crystallized into those immortal thunder-poems of the Book of Songs and the Songs of Chu.