Hexagram 18: Work on What Has Been Spoiled
Gu · 蟲
The Judgment
Supreme success. It furthers one to cross the great water. Three days before the turning point, three days after. What was spoiled through neglect can be repaired through work. Deliberate carefully before and after beginning.
The Image
Wind blows low on the mountain, spoiling vegetation. The person of character stirs the people and strengthens their spirit. Decay challenges us to renovate—both structures and souls.
「山下有風,蠱。君子以振民育德。」風吹山腳,被擋回來,把草木吹壞。這景象有點頹敗。但古人看見的是挑戰:既然壞了,就要修。先要喚醒人心,再慢慢培養品德。次序很重要。
The Six Lines
Setting right the father's decay. If there is a son, no blame falls on the departed father. Danger, but good fortune in the end. The child corrects what the parent let slide.
Setting right the mother's decay. One should not be too persistent. Gentler correction required here—rigidity would harm rather than heal.
Setting right the father's decay. Small regret, no great blame. Some friction in the repair, but nothing seriously wrong. The work proceeds.
Tolerating the father's decay. Continuing brings humiliation. Passivity when action is required—watching the rot spread—this brings shame.
Setting right the father's decay. Meeting with praise. The correction is recognized and honored. The work earns reputation.
Not serving kings and princes. Making one's own work lofty. Some stand apart from public service to pursue higher aims. This is valid—not everyone must repair the common structures.
Artwork & Treatise

The Third-Class Carriage
Honore Daumier, 1864
A grandmother, a young mother nursing her infant, and a sleeping boy crowd into a third-class railway carriage. Honoré Daumier painted these working-class Parisians in 1864, documenting the cramped conditions inherited by those without wealth or status. The elderly woman's weathered face and the mother's exhausted posture tell a story of hardship passed from one generation to the next. The child sleeps unaware of what awaits him.
The I-Ching names this situation Gǔ (蠱), a character depicting worms eating grain in a covered bowl—corruption that accumulated while no one was watching. The hexagram shows Mountain (Gèn) above Wind (Xùn): stillness sitting over gentle penetration. Wind works its way into cracks; decay spreads beneath a solid surface. In ancient divination, this configuration appeared when someone inherited a broken system, a family burden, a social wound that predated their birth. The third-class carriage exists before any individual passenger boards it.
{artwork_reasoning}
The Judgment text speaks to Daumier's subjects: "Work on what has been spoiled has supreme success. It furthers one to cross the great water. Before the starting point, three days. After the starting point, three days." The text promises that inherited corruption can be addressed, but it requires preparation before action and consolidation after. Ancient practitioners understood that systemic decay cannot be fixed impulsively—it took time to accumulate and will take time to repair. The "three days before, three days after" suggests careful examination of how things became spoiled and vigilant attention to prevent recurrence.
The Image Text offers unexpected counsel: "The wind blows low on the mountain: the image of Decay. Thus the superior man stirs up the people and strengthens their spirit." Repair begins not with blame but with rousing those who have grown dispirited under inherited burdens. Daumier, himself a political satirist, painted this scene to make visible what the wealthy preferred not to see. In the I-Ching sequence, Work on What Has Been Spoiled follows Following—when people follow without understanding, when tradition becomes empty repetition, decay sets in. The next hexagram is Approach, when fresh energy begins to address what has been neglected.
Yilin Verse
魴生江淮,一轉為百;周流天下,無有難惡。
Jiao Yanshou's Forest of Changes (焦氏易林) — Unchanging verse for 蠱 (Gǔ)
Character-by-Character Breakdown
Classical Chinese text with pinyin and English meanings