Hexagram 49革Revolution
Change is overdue, and the old frame has lost legitimacy. The practical question is not whether change is attractive, but whether the timing, the trust, and the evidence are strong enough to support it.
60-second read
Revolution sits at the moment when a working arrangement has quietly stopped working. Not when it is on fire — the moment before. The conditions that made the old frame legitimate have shifted, and you are the first person inside the system to notice. The trap is to announce the change before you have earned the trust to make it. The discipline is to bind yourself to the present until the day seals, then act decisively, then stop pushing once the new charter holds.
The hexagram
革：己日乃孚。元亨利貞，悔亡。
On the day it is sealed, trust forms. There is great success. Hold the right course. Regret falls away. — Translation by YiGram Editorial from the classical Chinese
“Ge intimates that only on the day when it is finally accomplished shall men believe in it. There will be great progress and success. Advantage will come from being firm and correct. In that case occasion for repentance will disappear.”
— 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.
鞏用黃牛之革。
Bind it firm with yellow ox-hide.
“The first nine, undivided, shows its subject bound with the skin of a yellow ox.”
— Legge (1882)
The bottom line is the moment when you sense the change but the ground will not hold it yet. Yellow is the color of the centered, measured position. Ox-hide is restraint that has been crafted deliberately, not picked up by accident. The instruction is: bind yourself to the current arrangement, on purpose, while the conditions ripen.
In a decision context this is the premature pivot scenario. You see the market gap before the product reaches fit. You see the org chart problem before the team trusts you enough to act on it. You see the relationship gap before the conversation is possible. Each of those situations rewards a particular kind of holding — disciplined, named, with an exit condition. Not paralysis. Not denial. A binding you have chosen, with a date attached to it, so it does not become permanent by drift.
A practical test for whether you are in a line-1 situation: write down, in one sentence, the specific evidence you are missing that would justify the change. If the sentence comes easily, the binding is healthy and the wait has a defined end. If the sentence is hard to write, you are probably reacting to a feeling rather than a condition, and the change itself is premature.
己日乃革之，征吉，无咎。
When the day is sealed, then change. Going forward is fortunate. No fault.
“The second six, divided, shows its subject making his changes after some time has passed. Action taken will be fortunate. There will be no error.”
— Legge (1882)
This is the line that names the sequencing. The character 己 is often translated as "self" but in this divinatory context it carries the older sense of "the appointed, sealed day." The change is not arbitrary; it is conditioned on a marker that you defined in advance.
Decisions that hit this line tend to fail in one of two ways: either the actor never specifies the marker (so the day never seals) or the actor defines the marker and then loiters past it, re-deliberating. Both failures look like prudence from the outside. Both are forms of avoidance.
The practical move is to make the marker public to at least one other person before the deadline. A board meeting date. A milestone. A revenue threshold. A regulatory window. When the marker is met, act inside the same week — not the same quarter. Acting fast after the day is sealed is what the line means by no fault.
征凶，貞厲。革言三就，有孚。
Going forward brings danger. Steadfastness is severe. Speak the change three times completed; trust is granted.
“The third nine, undivided, shows that action taken by its subject will be evil. Though he be firm and correct, his position is perilous. If the change he contemplates have been three times fully discussed, he will be believed in.”
— Legge (1882)
Line 3 is the rush line. It sits at the top of the inner trigram, which means the actor has just enough position to push the change but not enough institutional cover to survive it. Acting at this altitude without communication is what the line calls danger. Holding firm without communication is what the line calls severe.
The cure is the curious phrase 革言三就 — speak the change three times completed. Not three times announced. Three times completed. A first statement: this is the change we are considering. A second: this is the version we have refined after objections. A third: this is the version we will execute, with the date attached. After the third pass, the people you need will believe you mean it. Before the third pass, anyone who reaches for a sword is justified.
In modern terms this is the difference between an announcement and a campaign. The standard mistake is to compress three communication cycles into one all-hands. The hexagram says you cannot. The trust takes the three rounds because trust is what the rounds are for.
悔亡。有孚改命，吉。
Regret falls away. Trust granted, the mandate is changed. Fortunate.
“The fourth nine, undivided, shows occasion for repentance disappearing. Let its subject be believed in; and though he change existing ordinances, there will be good fortune.”
— Legge (1882)
Line 4 is the inflection point — the bottom of the outer trigram, the first position that the wider world can see. The phrase 改命 is the high-voltage one. 命 is mandate, charter, the right to be where you are. To change the mandate is not to change a tactic. It is to change the answer to the question who is allowed to decide this.
The condition attached to mandate change is the same one the hexagram statement attaches to the cast as a whole: 有孚, the trust must already be granted. If line 2 sealed the day and line 3 ran the three communication rounds, line 4 is where the authority itself can shift without backlash. Regret falls away because the change is no longer contested at the level of legitimacy.
For founders this is the moment to actually transfer a decision right — to a co-founder, to a board, to a customer council, to a successor. For managers it is the moment to actually change a charter, not just a roadmap. Line 4 is the first line where the change becomes irreversible. Make sure the conditions of lines 1 through 3 are real before you spend it.
大人虎變，未占有孚。
The great person changes as a tiger renews its stripes. Without divining, trust is already there.
“The fifth nine, undivided, shows the great man producing his changes as the tiger does when he changes his stripes. Before he divines and proceeds to action, faith has been reposed in him.”
— Legge (1882)
Line 5 is the ruler line — the most powerful position in any hexagram. The image of the tiger renewing its stripes is exact: the new pattern is the same animal's pattern, unmistakable, and visible from a distance. The transformation is not gradual. It is sudden, public, and recognized as authentic the moment it appears.
The startling phrase is 未占有孚 — without consulting the oracle, trust is already there. The decision is so well-grounded it does not need an external warrant. Most people will never occupy this line. Most decisions need consultation, deliberation, and explicit blessing. Line 5 names a rarer state: when the actor's conviction and the situation's readiness are so well aligned that the act explains itself.
In a business context this is the signature pivot — a founder re-orienting the company around a new product, an executive replacing a strategy that has run its course, a community leader announcing a direction the community has already been moving toward. If you have ever watched a real such moment, you have noticed that the deliberation phase is brief and the room agrees faster than anyone expected. That is what the line is naming.
君子豹變，小人革面。征凶，居貞吉。
The noble person changes as a leopard renews its spots; the small change only their face. Going forward brings danger; abiding firm brings fortune.
“The topmost six, divided, shows the superior man producing his changes as the leopard does when he changes his spots, while small men change their faces and show their obedience. To go forward now would lead to evil, but there will be good fortune in abiding firm and correct.”
— Legge (1882)
Line 6 is what happens after the revolution succeeds. The strong subordinate — the leopard — produces a real but slower transformation. The peripheral participant — the small person — changes only what is visible. Both responses are normal. The error at this stage is to keep pushing as though the work of change were still ongoing. It is not. The work is to consolidate.
征凶 — going forward brings danger — is a clean instruction. The change has happened. Pressing for more change now is what breaks the new arrangement before it sets. 居貞吉 — abiding firm brings fortune — is the corresponding correction. Hold the new charter. Defend it from the temptation to keep optimizing it. Let the leopards take their season. Let the small people keep their faces.
Pay particular attention to the small-person-changing-the-face pattern. It is not deception; it is adaptation under cost. The same colleague who only changed face this season can sometimes become next season's leopard, once it is safe. Punishing the changed face now removes the option for the deeper change later. Let it be. The line is naming a probability distribution of buy-in, not a moral test.
PostureWhat the hexagram is asking
The hexagram is named after the literal act of stripping a hide. To revolt, in this sense, is not to attack — it is to pull off a layer. You take off something that used to fit. The question is whether you have built enough to wear what comes next.
The text repeats a single condition: 己日乃孚. On the day it is sealed, trust forms. Not before. The sequence is not change first, trust later. The sequence is condition met, then trust, then change. Most failed pivots invert that order. They announce the change, hope for trust, then look for the condition that justified it. This is the textbook way to lose a board, an investor base, or a team.
What makes Revolution different from Decrease, Reform, or Standstill is the specific posture it asks for. You are not negotiating. You are not waiting. You are preparing the moment of legitimacy. The work is internal first — line up the evidence, name the cost, lock the decision in your own mind — then external. By the time the change is public, the people who matter should not be surprised.
Failure modesThree traps · tiger / leopard / small person
Three traps cluster around this hexagram. The first is changing before the conditions are real, because the change is exciting. The second is waiting past the moment, because the change is expensive. The third is announcing the change before you have repeated it enough times for people to believe you mean it. The line texts are mostly built around these three traps.
The two animal images carry most of the cognitive load. The tiger changes its stripes — a leader whose transformation is so unambiguous that no one asks for the justification. The leopard changes its spots — a strong subordinate whose change is real but takes another season to show. The small person changes only the face — surface compliance, no inner shift. A successful revolution accepts all three modes inside the same organization. It does not punish the leopard for being slower than the tiger, and it does not mistake the small person's changed face for an actual change of heart.
Application & adjacentWhen it applies · Hexagrams 18 + 50 · actor alignment
A note on the question shape this hexagram answers best. Revolution rewards questions framed around a specific arrangement — a role, a contract, a product line, a partnership — where you already suspect the legitimacy has slipped. It is less useful for vague questions about whether to start something new from scratch. If the question you brought to the cast was open-ended exploration, re-read the cast as guidance for the change you are avoiding rather than for a fresh beginning.
Compared to its neighbours: Hexagram 18 Gu — Decay — describes the state when an inherited arrangement has rotted but the moment to overturn it has not yet arrived; Revolution is what 18 becomes once the conditions ripen. Hexagram 50 Ding — Cauldron — is the canonical companion, describing what to do after the revolution holds: the new institution is cast, the new charter is set, and the work is now to consolidate rather than to overturn. Reading 49 without those two adjacent hexagrams tends to produce actors who pull the hide off too early or who keep pulling after the new skin is already in place.
Revolution is also unusually demanding about the actor's own alignment. The hexagram repeatedly references trust — 孚 appears three times across the statement and the line texts — and trust is a function of consistency over time, not a function of the act itself. If the people who would be affected by your change have watched you change your mind on smaller things in the last six months, the conditions for line 4 will not be there yet, no matter how clean the strategy looks on paper.
SynthesisYiGram Editorial
Each Western line of reading approaches Revolution from a different angle. James Legge frames 49 within his Confucian moral lens — the canonical scriptural instance of legitimate dynastic succession, the Tuan’s own example of Tang and Wu changing the mandate. Richard Wilhelm’s symbolic-philosophical posture reads it less politically and more as the great image of natural cycle — fire and water as the seasonal turning of the year. A reading in the lineage of Carl Jung’s 1949 foreword would treat 49 as a marker of psychic transformation rather than political reform — the moment an inner figure is shed and a new self-image takes its place. Bradford Hatcher’s linguistic project (below) abandons all three framings and returns to the semantic field of 革 itself — the literal act of stripping a hide, molting a skin, casting off a covering that has outlasted its function. None of these readings is quoted on this page; the synthesis is YiGram Editorial’s characterization of each tradition’s posture, written so a reader can triangulate the field without us reproducing copyrighted text.
Reception historyLegge · Wilhelm · Baynes · Jung
The Western reception of the I Ching has two main lines. The first is James Legge’s 1882 missionary translation in the Sacred Books of the East series — methodical, Victorian, framed around Confucian moral readings. It is the public-domain anchor reproduced above. The second is Richard Wilhelm’s 1923 German translation, prepared in Qingdao in collaboration with Lao Naixuan — sympathetic, philosophical, closer to Daoist intuitions. Cary F. Baynes rendered Wilhelm into English in 1950, with a foreword by Carl Jung that introduced the book to Western psychology as a window onto synchronicity and the unconscious.
We cite these two lines by name to credit the reception history and to help search systems and readers resolve the entities; the Wilhelm/Baynes text itself and Jung’s foreword remain in copyright and are not quoted on this page. A more recent academic-linguistic line is represented by Bradford Hatcher’s Yijing project (1990s–2010s), which appears in the next section under his explicit redistribution permission.
Bradford HatcherVerbatim · © 2011
Hatcher organizes each hexagram around six short clusters of keywords that sketch the field of decision and association the Chinese name opens onto. For Hexagram 49 革, his clusters are:
Strip, shed skin or fur, lay bare, molt, cast off, unveil, disburden; summer clothes Rawhide, leather, encrustations, shells; protective coverings, restraints, precedents Protective membranes dated, outmoded, no longer needed; calluses & callousness Obsolescence, anachronism, aging institutions; things resisting change superseded Change, renewal, overthrow, overturn, turnaround, revolution; reform, unburden Divestment, revisions, re-envisionings, renovations, metamorphosis, outgrowing
Hatcher’s framing is vocabulary-centred rather than narrative — the reader is invited to feel the semantic shape of the Chinese name through the spread of English fragments. For his longer notes and the full glossary entry, read the complete passage on hermetica.info.
Quoted verbatim from Bradford Hatcher, Yijing Hexagram Names and Core Meanings (Version 12.1, 2011), hermetica.info/GuaMing.htm. © Bradford Hatcher, 2011. Reproduced under the author’s explicit permission to redistribute his work intact, with copyright notice. Bradford Hatcher (d. June 2020); site maintained to preserve his work.
SynthesisYiGram Editorial
Read across the four Chinese traditions, Hexagram 49 names a very specific posture: a structural change — not a tactical pivot — whose legitimacy depends on a sealed condition (the 己日 of the hexagram statement) and a granted trust (the 孚 that the Tuan commentary reinforces). The Wings give the canonical political reading: the sage-king instance, Tang and Wu changing the mandate, with the same natural-cycle resonance (fire and water alternating, the four seasons completing). Wang Bi sharpens the threshold logic: act before either condition holds and you produce agitation, not revolution. Zhu Xi reframes the threshold as 去故就新 — leaving the old, joining the new — and stresses that the new mandate must be earned, not inherited. The divinatory manual Bushi Zhengzong reads 49 strictly as a marker for transitions in authority and organization — not as a green light for everyday change. The unified posture across all four is the same: Revolution is a discipline for changing what genuinely needs to change, at the moment that genuinely permits it, with the people who have genuinely come along.
Yi ZhuanTuan + Xiang · Ten Wings
The Ten Wings are the canonical Confucian commentary stratum embedded in the received Yijing. For Hexagram 49 the two most directly relevant Wings are the Tuan Zhuan (彖傳, the Judgement Commentary) and the Xiang Zhuan (象傳, the Image Commentary).
Tuan 彖傳: 革，水火相息，二女同居，其志不相得，曰革。己日乃孚，革而信之；文明以說，大亨以正。革而當，其悔乃亡。天地革而四時成，湯武革命，順乎天而應乎人。革之時大矣哉。
Revolution: water and fire extinguish each other; two daughters dwell together but their aims do not agree — this is called Revolution. “On the day it is sealed, trust forms” means revolution is then trusted. Cultured-bright and joyful, great success through correctness. When revolution fits, its regret falls away. Heaven and earth revolve and the four seasons complete; Tang and Wu changed the mandate, following Heaven and corresponding with humanity. Vast indeed is the timing of revolution.
Xiang 象傳: 澤中有火，革。君子以治曆明時。
Fire within the lake — Revolution. The noble person sets the calendar straight to make the times clear.
The Tuan does the political-canonical work: it identifies the Tang-and-Wu mandate change as the paradigm case and grounds it cosmologically in the four-season cycle. The Xiang does the ethical work: when the great image is recognized, the noble person’s correct response is calendar reform — reset the public reference frame so the new time is legible to everyone. Translations by YiGram Editorial from the classical Chinese.
Classical commentariesWang Bi · Zhu Xi · Bushi Zhengzong
Wang Bi (Zhouyi Zhu, 3rd century) puts the weight of Hexagram 49 on the conditional pair 己日 and 孚 — the moment must be sealed and the trust must be granted before any change-of-mandate movement is safe. Acting before either condition holds is, in Wang Bi’s reading, not revolution but agitation; the hexagram is naming the threshold that separates the two.
Zhu Xi (Zhouyi Benyi, 1188) reframes the hexagram as 去故就新 — leaving the old, joining the new — and stresses that the new mandate must be earned, not seized: a successor whose claim depends on inheriting the legitimacy of the displaced order has not yet completed the change the hexagram is naming.
The Bushi Zhengzong (Qing-dynasty divinatory manual, 1709) reads 49 practically rather than philosophically: a hexagram drawn in answer to a question about authority transitions, organizational restructuring, or the timing of a publicly visible change of position. The manual explicitly warns against reading 49 as a green light for everyday tactical change — it marks structural shifts, not optimization moves.
Translations and paraphrase by YiGram Editorial from the classical Chinese. We do not reuse any modern third-party English rendering of these commentaries.
These method notes are not required to read the hexagram. They organize the traditional six-line structure for readers who want to see the rule layer beneath the plain-language reading.
Palace: Kan (water). Generation: Fourth (四世). Binary, bottom-up: 101110. Lower trigram: Li (fire). Upper trigram: Dui (lake). Shi line: 4. Ying line: 1.
The shi line at position 4 — the same line that names the mandate change — carries the relationship of siblings to the kan palace, because its branch (亥, water) matches the palace element. The ying line at position 1 carries offspring, because its branch (卯, wood) is what the palace element generates. Read as a structural pair, the shi-ying axis says that the actor of the change shares the palace’s nature, while the receiving position is a growth direction the palace itself produces. The change is internal in origin and generative in destination.
For a cast, this static layer records the palace, generation label, shi and ying positions, each line's branch and six-relative, moving-line positions, transformed hexagram, and the use-spirit selected by question category. The public page keeps that structure as a method note rather than as default reading text.
Audit status: unaudited_draft. The static-layer tables are pulled from the standard 京房纳甲 sequence and have not yet been cross-checked against the three reference texts named in the methodology. Errors should be reported against the v0.1.0 rule version in the GitHub rules directory.
For the full pipeline (how the static layer reaches the AI interpretation), see Methodology → Najia engine.
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.
- 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).
- 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.
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.
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