The mountain stands below the wind.
Corruption yields to patient work.
What was spoiled can be restored.
The Judgment
This hexagram depicts a condition where neglect has taken hold â not through malice, but through the slow accumulation of what was left undone. The wind above the mountain suggests forces that have been allowed to scatter what should have been preserved, or stagnation where movement was needed.
The Chinese character ku originally meant worms in a vessel â the literal image of decay. Yet this hexagram is not about destruction but renovation. What has spoiled can be made whole again, but only through deliberate, sustained effort that addresses root causes rather than surface symptoms.
The work required is neither dramatic nor swift. It demands the patience to undo damage that took time to accumulate, and the wisdom to strengthen what was weak in the original foundation. Success comes not from force but from consistent attention to what has been overlooked.
This is often the work of a generation â inheriting problems created by those who came before, and taking responsibility for setting things right not for glory, but because the work itself is necessary.
The Image
The wind blows low on the mountain. The superior man stirs up the people and strengthens their spirit.
Wind close to the mountain creates turbulence â the air cannot flow smoothly but churns and stagnates. This natural image points to what happens in human affairs when energy has no proper outlet, when customs have grown rigid and vitality has been lost.
The response is not to blame those who let things decay, but to revive what has grown dormant. This requires understanding what originally gave life to traditions and institutions, then finding ways to restore that animating principle to present circumstances.
The Lines
Individual line interpretations
Hexagram 18 - Work on what has been spoiled [Decay] | Ku