蠱 → 蠱
Hexagram 18: Work on the Decayed → Hexagram 18: Work on the Decayed
Changing Lines
This transformation has no changing lines. Both hexagrams are identical.
Trigram Changes
Yilin Verse
魴生江淮，一轉為百；周流天下，無有難惡。
The bream is born in rivers and streams; one fish multiplies to a hundred. Circling throughout the realm, encountering no hardship or evil.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Wind beneath the mountain turns upon itself — decay facing its own reflection. The bream is born in rivers and marshes; one turns into a hundred. Circulating freely through all under heaven, encountering nothing difficult or harmful. The fish multiplying effortlessly in its native waters evokes natural abundance without external intervention. When the source hexagram meets itself as target, the question becomes: can decay renew decay? The answer here is yes — through natural fertility and free circulation. From Work on the Decayed to itself, the insight is that corruption contains its own remedy when life-force flows unobstructed. The mountain's wind, rather than stagnating, circulates and regenerates.
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