Hexagram 21噬嗑Shì KèBiting Through

Biting Through is the hexagram for the moment when an obstacle must be removed by decisive force — and the discipline of biting cleanly: enough force to clear the obstruction, no more than necessary, and not as punishment for its own sake. The hexagram refuses both the failure to act and the over-corrective bite that destroys the mouth along with the bone.

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Biting Through is the hexagram for the obstruction that must be removed. Thunder below, fire above — thunder and lightning, the visible force of judgement striking. The hexagram statement is direct: success comes through using criminal punishments. The instruction is not cruelty; the instruction is decisive removal of what is in the way. The discipline runs along a narrow ridge between two failures: refusing to bite, and biting so hard that the bite itself becomes the new problem. Read with the Xiang commentary's prescription — the former kings made the punishments clear and set the laws right — the hexagram is the I Ching's clean picture of judgement that can be seen, applied, and finished.

The hexagram

噬嗑:亨,利用獄。

Biting Through: success. Advantage in using criminal punishments. — Translation by YiGram Editorial from the classical Chinese

Shih Ho indicates successful progress (in the condition of things which it supposes). It will be advantageous to use legal constraints.

— James Legge, The Sacred Books of the East: The I Ching (1882), public domain.

The six lines

Click any line on the hexagram to read its passage. Use ↑ and ↓ after focusing the hexagram to step through the six positions.

Line 1Yang at the bottom初九

屨校滅趾,無咎。

Feet in the stocks; the toes are cut off. No fault.

The first NINE, undivided, shows one with his feet in the stocks and (deprived of his) toes. There will be no error.

— Legge (1882)

Line 1 is the yang at the bottom of the lower trigram of thunder — the first stirring of the corrective force, and in the criminal-justice framing of the hexagram, the first stratum of punishment: feet in the stocks, the toes immobilised. The image is severe; the verdict is not. 無咎 — no fault. The hexagram is precise. At line 1 the offence is small and the correction is correspondingly small. The actor under correction has been stopped before they could walk further into the offence; the institution applying the correction has acted while the matter is still containable. The stocks are not the gallows. The discipline is in catching the drift early.

In a decision context this is the line of the first formal warning, the first written notice, the first time a behaviour that had been tolerated is named as a violation of the rule. The line is explicit that the small, visible correction is precisely the discipline that prevents the line-6 catastrophic ending. Founders and operators who learn to read line 1 cleanly stop the pattern before the pattern hardens — the team member is told clearly that the missed deadline matters, the customer is told clearly that the abusive message crossed a line, the supplier is told clearly that the quality miss has been logged. The actor under correction may bristle; the line is honest that the bristling is part of the cost. But the toes-only stratum of punishment is the cheapest correction the hexagram offers, and the no-fault verdict is unambiguous about its value.

PostureDecisive bite · the obstruction that must be removed

Biting Through is the hexagram of decisive action. The trigram structure is the whole picture: Zhen (thunder) below, Li (fire) above — thunder and lightning, the visible force of judgement striking. The hexagram image is the mouth biting through an obstruction lodged between the teeth: the fourth yang line interposed between the two open jaws of the surrounding broken lines. The hexagram statement is direct: 亨,利用獄 — success, advantage in using criminal punishments. The instruction is not cruelty; the instruction is the structural recognition that some obstructions can only be removed by force, and that the refusal to apply the force is itself the deeper failure.

The Xiang commentary makes the prescription explicit: 雷電噬嗑。先王以明罰勅法 — thunder and lightning, Biting Through; the former kings accordingly made punishments clear and set the laws right. The image refuses to make Biting Through a hexagram about retribution. The first work the former kings did was to make the punishments visible — 明罰, illuminate the penalties — so that the corrective force was legible before it was applied. The second work was to set the laws right — 勅法, correct the statutes — so that the bite, when it came, was the bite of a known rule and not of arbitrary will. The whole hexagram is the I Ching’s instruction for institutional judgement that can be seen, applied, and finished without becoming a spectacle of force.

Failure modesBiting past the nose (line 2) · cangue at the top (line 6)

The dominant failure mode is the line-2 over-correction habit — biting through the soft flesh and going on to bite off the nose. The hexagram’s no-fault verdict at line 2 is a warning disguised as a permission: the soft offender absorbs the over-correction without structural damage, and the actor learns that biting past the meat is costless. Applied at the harder stratum of lines 4 and 5, where the offence is senior and the case is institutional, the same overshoot produces exactly the costs the hexagram’s top line records. The secondary failure is the line-6 inverse: an actor whose pattern of refusing the line-1 toes-only correction has accumulated until the offence has hardened past the stratum where small punishments could contain it. Both failures share a root: an actor who treats corrective force as a feeling — squeamishness in the line-1 case, vindication in the line-2 case — rather than as a calibrated response to the specific stratum the offence has reached.

Application & adjacentQuestion shape · Hexagram 22 pair · Removing what politeness has tolerated

A note on the question shape this hexagram answers best. Biting Through rewards questions framed around a specific obstruction that must be removed by decisive force — a non-performing employee whose pattern has finally crossed a clear line, a disruptive customer whose abuse has exhausted the goodwill that was meant to accommodate it, a regulatory violator whose conduct will not be self-corrected, a process bottleneck that has been politely tolerated past the point where toleration is itself the problem. It is less useful for vague questions about whether the actor should be more assertive in general; for that question, re-read with Hexagrams 43 — Breakthrough — or 49 — Revolution — depending on whether the action is the rupture of an accumulated pressure or the wholesale change of a regime. Biting Through presumes the obstruction is specific and the bite is local.

The canonical adjacent reading is Hexagram 22 — Grace — the immediate successor in the King Wen sequence and the hexagram’s structural pair. Where Hexagram 21 puts thunder below fire and names the decisive force of judgement striking, Hexagram 22 puts fire below mountain and names the cultivated form that adorns the substance. Read together, the pair is the I Ching’s instruction for the two halves of institutional life: in 21 you remove what must be removed by clean and visible force; in 22 you compose the surface so the substance can be received. The pair refuses both the regime that polishes the surface while letting the obstructions accumulate beneath it, and the regime that bites everything in sight while neglecting the form that makes the bite legible as judgement rather than as arbitrary violence. TheXiang’s 明罰勅法 — making the punishments clear and the laws right — is the bridge: clarity of form is what lets the bite be a bite rather than an explosion.

The operational centre of the hexagram is the line-4 / line-5 pair, where the bite is hardest and the institutional stakes are highest. For the actor in those seats, the decision-relevant move is twofold. First, recognise the stratum: line 4’s bone-dried flesh is not line 2’s soft meat, and the line is explicit that the fortune depends on 利艱貞 — advantage in recognising the difficulty and being firm. Second, accept the peril: line 5’s yellow gold comes only with 貞厲 — firm-correctness yet peril — the explicit acknowledgement that even a correct bite from the ruler’s seat carries cost. Operators who treat the bite as costless produce the line-6 cangue one level above their own position. Operators who read the stratum and accept the peril find the gold the hexagram named.

Sources

  • Classical text of the Yijing (周易) — hexagram and line statements (卦辭 / 爻辭) from the received Zhou-dynasty edition. Public domain.
  • James Legge, The Sacred Books of the East, Vol. XVI: The Yi King, Oxford University Press, 1882. Public domain.
  • Zhu Xi (朱熹), Zhouyi Benyi (周易本義), 1188. Public domain.
  • Wang Bi (王弼), Zhouyi Zhu (周易注), 3rd century. Public domain.
  • Bushi Zhengzong (卜筮正宗), Qing-dynasty divinatory manual, 1709. Public domain.
  • Tuan Zhuan (彖傳) and Xiang Zhuan (象傳), two of the Ten Wings (十翼). Public domain.
  • Bradford Hatcher, Yijing Hexagram Names and Core Meanings (Version 12.1, 2011). © Bradford Hatcher, 2011. Reproduced under the author’s explicit permission to redistribute his work intact, with copyright notice; this page quotes the “Key Words” subsection only and links readers to the full original for the longer notes. Bradford Hatcher (d. June 2020).

All Chinese-to-English translations on this page are by YiGram Editorial, working directly from the classical Chinese. We do not reuse third-party modern English translations of any of the listed Chinese sources. Read the full source policy in the methodology page.