Fire beneath the lake.
What has served its time must change.
Great undertakings bring success.
The Judgment
Revolution arrives not as chaos but as necessity. When forms have hardened beyond their usefulness, when institutions serve themselves rather than their purpose, transformation becomes inevitable. The image is fire beneath water — two elements in fundamental opposition, creating the conditions where change must occur.
This hexagram speaks to moments when gradual reform is no longer sufficient. The old order has exhausted its legitimacy, and those who cling to it discover they are defending an empty shell. Yet revolution here is not mere destruction. It is the emergence of what has been prepared in secret, the surfacing of new patterns that have been gathering strength beneath apparent stability.
The timing of such change follows natural law rather than human preference. Like the molting of animals or the seasonal death of vegetation, it serves renewal rather than endings. Success comes to those who recognize when such moments have arrived and align themselves with forces larger than personal will.
The Image
Fire in the midst of water — the image of revolution. The superior man arranges the calendar and makes clear the seasons.
Fire and water cannot coexist unchanged — their meeting demands transformation. This is the pattern of all genuine revolution: not the collision of arbitrary forces but the natural result when incompatible principles are brought into contact.
The superior man learns from this to distinguish between what endures and what must be renewed. Like establishing a calendar, he creates structures that honor both continuity and change, marking the seasons so that transformation comes with understanding rather than surprise.