Hexagram 49 · 周易第49卦

泽火革

Gé · Revolution
上兑 下离

Hexagram 49 describes revolution — the fundamental transformation of existing structures when they have become untenable. Gé is not mere reform but a complete shedding of the old skin, a radical renewal that, when the time is right, brings lasting good fortune.

卦辞 · Judgment
卦辞原文

革:己日乃孚,元亨利贞,悔亡。

变革之道:时机成熟之日才能取信于人;大亨通而利于守正,悔恨自会消亡。

Interpretive translationRevolution. On your own day you are believed. Supreme success, furthering through perseverance. Remorse disappears.

彖传

彖曰:革,水火相息,二女同居,其志不相得,曰革。己日乃孚,革而信之。文明以说,大亨以正,革而当,其悔乃亡。天地革而四时成,汤武革命,顺乎天而应乎人,革之时大矣哉!

象传(大象)

象曰:泽中有火,革;君子以治历明时。

泽中有火,水火相息而变革;君子效法它,修治历法、明辨时序。

爻辞 · Line Texts
初九

巩用黄牛之革。

象曰:巩用黄牛,不可以有为也。

Wrapped in the hide of a yellow cow.

六二

己日乃革之,征吉,无咎。

象曰:己日革之,行有嘉也。

When one's own day comes, one may create revolution. Starting brings good fortune. No blame.

九三

征凶,贞厉,革言三就,有孚。

象曰:革言三就,又何之矣。

Starting brings misfortune; perseverance brings danger. When talk of revolution has gone the rounds three times, one may commit oneself.

九四

悔亡,有孚改命,吉。

象曰:改命之吉,信志也。

Remorse disappears. Men believe him. Changing the form of government brings good fortune.

九五

大人虎变,未占有孚。

象曰:大人虎变,其文炳也。

The great man changes like a tiger. Even before he questions the oracle he is believed.

上六

君子豹变,小人革面,征凶,居贞吉。

象曰:君子豹变,其文蔚也。小人革面,顺以从君也。

The superior man changes like a panther; the inferior man molts in the face. Starting brings misfortune; to remain persevering brings good fortune.

Reading notes

Structure

Gé is formed by Lake (Dui ☱) above Fire (Li ☲). Fire rises while water descends — the two forces oppose each other fundamentally. This mutual opposition creates the dynamic tension that drives transformation. The lower trigram Li also represents clarity and illumination, suggesting that revolution must be grounded in clear understanding of what must change and why.

Judgment and Image

The Judgment states: Revolution. On your own day you are believed. Supreme success. Perseverance furthers. Remorse disappears. The Image shows fire in the lake — the superior person sets the calendar in order and makes the seasons clear. The reference to the calendar is significant: revolution is not arbitrary destruction but the restoration of proper order. Just as the calendar marks the turning of seasons, true revolution aligns human affairs with natural rhythms.

Core meaning

The central teaching of Gé is that revolution is sometimes not only justified but necessary. When existing structures have become corrupt, oppressive, or simply no longer fit for purpose, clinging to them causes more harm than the disruption of change. The hexagram validates the impulse toward radical transformation while counseling that timing and legitimacy are everything.

The phrase "on your own day you are believed" points to the importance of timing. Revolutionary change that comes too early is dismissed as reckless; change that comes too late is seen as desperate. The right moment is when the old order has clearly exhausted its mandate and people are ready to accept something new. At that point, the revolutionary is believed and supported.

In Liuyao readings, Gé often appears when the querent is facing a situation that cannot be improved incrementally — where the entire framework must be reconsidered. This might be a career change, the end of a relationship, a move to a new city, or a fundamental shift in values. The hexagram does not counsel change for its own sake, but it affirms that when the time for revolution has come, hesitation only prolongs suffering.

The disappearance of remorse is also significant: after a true revolution, the regret and second-guessing that accompany half-measures dissolve. When the change is complete and correct, there is nothing to regret.

In divination

When Gé appears in a reading, it signals that fundamental change is either underway or necessary. For career questions, it may indicate a complete change of direction rather than incremental advancement. For relationships, it may point to the need for a radical renegotiation of terms or a clean break.

Gé is favorable for bold decisions, endings that clear the way for new beginnings, and situations where the old order has clearly failed. It is unfavorable for maintaining the status quo, half-hearted reforms, or changes made without clear vision of what should replace the old.

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