澤火革
Core Insight
澤火革 — Hexagram 49
Revolution. Skin shed at the appointed day, the change becomes credible. Act only when the time is fully ripe; then act with clarity and the people follow.
The Image
澤中有火，革；君子以治歷明時。
The Image of Revolution: make timing visible before asking people to accept change. Treat the image as practical discipline, not decoration: let it shape the next concrete choice.
Shifting lines
初爻
At the beginning of Revolution, keep the move small. Clarify the real question before seeking momentum.
二爻
A steadier position appears. Accept help, test the facts, and choose the next step that can be repeated.
三爻
Pressure rises in Revolution. Do not make the tension theatrical; name the risk and reduce the unnecessary load.
四爻
The situation nears a threshold. Recheck motives, adjust the method, and avoid forcing a premature outcome.
五爻
This is the governing line of Revolution. Act from the clearest principle and make the decision useful to others.
上爻
The pattern is reaching its limit. Complete what can be completed, release excess, and prepare for the next change.