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䷑	U+4DD1, ䷑ HEXAGRAM FOR WORK ON THE DECAYED

Translingual

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Hexagram 18 is named 蠱 (gǔ), "Correcting". Other variations include "work on what has been spoiled (decay)", decaying and "branch".^[1] Its inner (lower) trigram is ☴ (巽 xùn) ground = (風) wind, and its outer (upper) trigram is ☶ (艮 gèn) bound = (山) mountain. Gu (蠱) is the name of a venom-based poison traditionally used in Chinese witchcraft.

^ Moran, Elizabeth, Joseph Yu (2002) The Complete Idiot's Guide to the I Ching‎^[1], Alpha (Pearson), retrieved 16 October 2008