Hexagram 21 Shi He - Complete Guide Part 1: The Symbol and Structure of Biting Through
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BY NICOLE LAU
Hexagram 21 Shi He - Complete Guide Part 1: The Symbol and Structure of Biting Through
Shi He is the I Ching’s great hexagram of decisive action — of the genuine biting through that removes the obstacle between the teeth, restores genuine union, and establishes genuine social order. The character shi (噬) means to bite; the character he (盖) means to close, to unite. Together, shi he (噬盖) means biting through — the decisive action that bites through the obstacle between the teeth and closes the mouth in genuine union. Shi He is one of the most practically urgent hexagrams in the I Ching: when an obstacle stands between genuine union, the only path forward is the decisive action that bites through it.
The Structure of Shi He
Binary and Trigram
Shi He is Hexagram 21 in the King Wen sequence. Its binary structure is 101001 — a complex arrangement of yang and yin lines that reflects the dynamic interplay of genuine strength and genuine receptivity that decisive action requires. The fourth line — a yin line in the position of the minister — is the structural key of Shi He: the obstacle between the teeth that the decisive action of the hexagram must bite through. The yang lines above and below the fourth line are the teeth of the open mouth: the genuine strength that bites through the obstacle and restores genuine union.
The Two Trigrams
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Lower trigram: Zhen (震) — Thunder, Arousing, Movement
Thunder is the image of the genuine arousing force that moves all things — the sudden, decisive energy that breaks through stagnation and initiates genuine movement. In Shi He, the thunder of genuine arousing force is in the lower position: the genuine inner energy that initiates the decisive action of biting through. -
Upper trigram: Li (離) — Fire, Clarity, Clinging
Fire is the image of genuine clarity — the quality that illuminates all things, that sees clearly the genuine nature of the obstacle, that provides the genuine light that decisive action requires. In Shi He, the fire of genuine clarity is above the thunder of genuine arousing force: the genuine clarity that illuminates the obstacle and guides the decisive action of biting through.
The Image: Thunder and Lightning
The Xiang Zhuan (Image Commentary) states: “Thunder and lightning: the image of Biting Through. Thus the kings of old made firm the laws through clearly defined penalties.”
Thunder and lightning together are the image of genuine decisive action: the sudden, arousing force of thunder combined with the illuminating clarity of lightning. The kings of old who made firm the laws through clearly defined penalties are the political expression of Shi He: the genuine decisive action that bites through the obstacle of lawlessness and restores genuine social order through the clearly defined penalties of genuine law.
The Judgment: Success Through Decisive Action
The Tuan Zhuan (Judgment Commentary) states: “Biting Through has success. It is favorable to let justice be administered.”
Shi He’s judgment is direct and practical: biting through has success. The obstacle between the teeth must be bitten through — the decisive action that removes the obstacle and restores genuine union has success. It is favorable to let justice be administered: the decisive action of Shi He is the administration of genuine justice — the clearly defined penalties that bite through the obstacle of lawlessness and restore genuine social order.
The Open Mouth: The Central Image of Shi He
The central image of Shi He is the open mouth with an obstacle between the teeth — the image of the situation in which genuine union is prevented by an obstacle that must be bitten through. The open mouth represents the genuine potential for union: the two jaws that can close in genuine union when the obstacle between the teeth has been removed. The obstacle between the teeth represents the genuine impediment to union: the lawlessness, the corruption, the genuine wrong that prevents genuine social order.
The decisive action of Shi He is the biting through that removes the obstacle: the genuine justice that bites through the lawlessness, the genuine clarity that illuminates the corruption, the genuine arousing force that breaks through the genuine wrong. When the obstacle has been bitten through, the mouth closes in genuine union — the genuine social order that genuine justice makes possible.
The Natural Sequence: From Guan to Shi He
The Xu Gua Zhuan (Sequence Commentary) states: “Things cannot be united without something to bite through. Hence after Guan comes Shi He.” The natural sequence from Guan (Contemplation) to Shi He (Biting Through) is the I Ching’s account of how genuine decisive action emerges from genuine contemplation: the person who contemplates the genuine state of the situation (Guan) finds the genuine obstacle that genuine decisive action (Shi He) must bite through.
Correspondences and Relationships
- Paired hexagram (Bi Gua): Hexagram 22 Bi (Grace) — Shi He and Bi are paired: genuine biting through (Shi He) and genuine grace (Bi) are the two faces of the same genuine inner virtue.
- Inverse hexagram (Zong Gua): Hexagram 22 Bi (Grace) — the inverse of Shi He is Bi: the fire above thunder (Shi He) inverted becomes the mountain above fire (Bi).
- Nuclear hexagram: Hexagram 39 Jian (Obstruction) — the nuclear hexagram of Shi He is Jian. The genuine biting through of Shi He contains within itself the seeds of the genuine obstruction that false biting through generates.
What Is Next in This Series
- Part 1 (This Article): The Symbol and Structure
- Part 2: The Six Lines — Complete Line-by-Line Commentary
- Part 3: Divination Guide — How to Read Shi He in Practice
- Part 4: Philosophy — Shi He in Confucian, Taoist, and Political Thought
- Part 5: Practical Applications — Conflict Resolution, Decisive Leadership, Removing Obstacles
- Part 6: Modern Interpretations — Restorative Justice, Decisive Action Science, Contemporary Relevance
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