I Ching Hexagram 21
Hexagram 21: Shi He (噬嗑)
Composed of 震 (Zhen) below and 离 (Li) above · biting-through · justice · obstruction · decisive-action
The Judgment
噬嗑：亨。利用狱。
Shi He: it gets through. Use the case - the matter must be brought forward, heard, and settled, because what blocks you will not dissolve on its own.
Translation notes
- 噬嗑: Wilhelm renders "Biting Through" — 嗑 in this name is a phonetic loan for 合, the closing of the mouth. The traditional gloss of the name is 颐中有物, 啮而合之 - something is lodged in the jaw, bite it and close the mouth. That is a picture of one specific object wedged between the teeth, not of general chewing, which is why every line in the hexagram is about the same single obstruction being worked on from a different angle.
- 利用狱: Wilhelm renders "penal law" — 獄 is a case, a trial, and also a prison. The phrase is procedural advice: this is a matter to take through official channels with evidence, testimony and judgement - not something to settle privately with pressure, rumour, or revenge.
The judgment above quotes the classical Chinese of the Zhou Yi (public domain); the English gloss and modern reading are our own. Compare with James Legge's The I Ching (Sacred Books of the East, Vol 16) , 1882 (public domain).
Quick Answers
Is hexagram 21 (Shi He) good or bad?
It is good, and unusually actionable. The judgment says plainly that it gets through, then adds one instruction: use the case - take it through proper procedure. The risk is not the decisive act itself, it is doing it in the wrong way or biting past the point where the obstruction ends.
What does hexagram 21 (Shi He) mean in love?
It means the unsaid thing has to be said. In a relationship this is a conversation you have been postponing, and the hexagram sides firmly with having it - the alternative in the final line is losing the ability to hear the answer at all. Single, it favours one clear question over a long campaign of hints.
What happens when line 4 of hexagram 21 (Shi He) changes?
九四 turning yin gives Hexagram 27 (Yi, Nourishment), the picture of jaw and sustenance. The present line is the hardest stage of the operation: biting into bone and finding a metal arrow, meaning a hard and honest fact at the centre of the problem. The changed picture says the way through is not more force but better input - what you take in, from whom you take it, and what you feed the situation next.
The Six Lines
Read your line of interest below. Lines are read from the bottom (line 1) to the top (line 6). A changing line means the hexagram is transforming — see the related hexagrams at the bottom.
初九
屦校灭趾，无咎。A strap is fastened to the shoe and the toe is cut off; no blame. Changing the bottom line turns Shi He into Hexagram 35 (Jin, Progress).
The obstruction is caught at the very start, so the cost is tiny. Deal with the small version of this problem now while it is still a toe and not a leg - cutting it early is what makes the later lines easy.
六二
噬肤灭鼻，无咎。Biting through soft flesh, the nose is cut off; no blame. Changing line 2 turns Shi He into Hexagram 38 (Kui, Opposition).
The material here is soft and the bite goes through easily - which is exactly when you can go too deep and take more off than the problem required. Easy to cut is not the same as correct to cut; check the margin before you close.
六三
噬腊肉，遇毒；小吝，无咎。Biting into dried meat and meeting something rotten; a small regret, but no blame. Changing line 3 turns Shi He into Hexagram 30 (Li, Clinging).
You hit the rotten part, so there is a bad taste and a moment of regret. Nothing is lost - but the smell of this line says stop chewing and move to a cleaner cut, rather than persisting with material that has already gone off.
九四
噬干胏，得金矢，利艰贞，吉。Biting through dried meat with the bones in it, and finding a metal arrow; beneficial to hold firm through difficulty, good. Changing line 4 turns Shi He into Hexagram 27 (Yi, Nourishment).
This is the hardest work and the most useful: what you find inside the obstruction is a hard, straight, honest fact. The line asks for firmness under strain rather than force, and the arrow is a reminder that precision beats volume.
六五
噬干肉，得黄金，贞厉，无咎。Biting through dried meat and finding gold; constancy here is stern and cautionary, but there is no blame. Changing line 5 turns Shi He into Hexagram 25 (Wu Wang, Innocence).
The result is worth having, and the process is not pleasant. Hold the line without enjoying it - the caution in this line is about how you behave once the thing is yours, not about whether you can win it.
上九
何校灭耳，凶。A heavy cangue is fastened on and the ear is cut off; bad. Changing the top line turns Shi He into Hexagram 51 (Zhen, Thunder).
The last line is the warning: this is what refusal costs. Someone who will not let the matter be settled ends up unable to hear the case at all. Shi He is decisive for a reason - the bite that clears the jaw is kinder than the sentence.
Hexagram 21 in Love, Career & Decisions
Love & Relationships
Judgment: something unspoken is jammed in the middle of this, and the hexagram says deal with it now. Single: the friction tends to come from vagueness rather than lack of feeling, so one clear question will do more than months of hints - but 六二 warns that when the answer comes easily you can hear more in it than was said, so confirm before you build on it. Partnered: expect a decisive, uncomfortable conversation; the point of this hexagram is to get the obstruction out, not to win the exchange. 上九 is the cost of silence instead - the ear gets cut off, and the conversation stops being available to you.
Ask the direct question in one sentence, then stop talking until the answer is finished.
Career & Work
Judgment: this favours action over patience. The reading fits a stalled approval, a contractor dispute, a compliance problem, or a project where one person's veto has quietly held everything up. Signal: the thing you have been handling diplomatically is now costing more than the confrontation would. 利用狱 says to go through the formal channel - document it, put it in writing, use the process that exists rather than escalating sideways. The career risk in this hexagram is not that you are too forceful; it is that you settle it privately with a person instead of on the record, which leaves you exposed later.
Put the disputed item in writing to the person with authority, with dates attached, so the record exists before anyone has to argue about memory.
Making a Decision
Yes - this is one of the clearest approvals in the stretch, with conditions. Proceed if the obstruction is named, the evidence is assembled, and the decision goes through a proper channel. What to watch is your own appetite for a clean cut: 六二 shows how easily an easy bite turns into damage, and 六三 shows what happens when you keep chewing rotten material. Hesitating is the worse option here - 上九 makes the price of refusal explicit and it is not reversible. Act on the specific thing, not on the person, and be willing to stop the moment the obstruction clears.
Move now on the specific obstacle, and set yourself a stopping point in advance so the operation stays proportionate.
Health & Wellbeing
Tone: sharp, clearing, and deliberately short-lived. Shi He is the image of an obstruction being removed, which reads as a sudden release of pressure you have been carrying - a blockage clears, a decision finally makes itself, a habit finally gets named. The energy is bright and efficient rather than warm, which means it will not sustain itself: treat it as a focused burst of cleanup, not a new normal to live in. Anything persistent belongs with a professional, not with a hexagram. For entertainment and reflection only, not medical advice.
Pick the one neglected thing you have been putting off and deal with it in a single sitting, then stop for the day.
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