Hexagram 49 — 革 (Gé), Revolution
Above: ☱ 兑 Lake Below: ☲ 离 Fire
The Judgment
巳日乃孚，元亨利贞，悔亡。
Molting — when the time is ripe, radical change wins trust; transformation done at the right moment removes regret.
The Image (Daxiang)
「泽中有火，革；君子以治历明时。」Fire within the lake — the noble person orders the calendar and makes the times clear.—— 《周易·大象传》（The Image Commentary）
The Tuan Commentary
彖曰：革，水火相息，二女同居，其志不相得，曰革。巳日乃孚，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，革之时义大矣哉！——《易传·彖传》
The Six Line Texts
| 初九 | 巩用黄牛之革。 |
| 六二 | 巳日乃革之，征吉，无咎。 |
| 九三 | 征凶，贞厉。革言三就，有孚。 |
| 九四 | 悔亡，有孚改命，吉。 |
| 九五 | 大人虎变，未占有孚。 |
| 上六 | 君子豹变，小人革面。征凶，居贞吉。 |
In Plain Terms
Revolution is ripe — change at the right day. When you receive this hexagram, hold the judgment beside your question: it describes a posture and a season, not a script.
I Ching judgments quoted from the Zhouyi (public domain); modern renderings by BaziOracle, for cultural and entertainment reference.