Wind trapped low on the mountain, rotting what grows: Gǔ is decay — and simultaneously the work that repairs it. What was spoiled through neglect can be mended through effort; that is this hexagram's stubborn hope.
Its counsel is deliberate renovation: weigh carefully before the start, watch carefully after. Much decay is inherited — the parent's unfinished business, the predecessor's shortcuts. Repairing it kindly, without blaming the departed, is among the most honorable work the I Ching names.
問Gǔ appears when a relationship carries accumulated neglect — the unaddressed resentment, the drifted habits. Its news is genuinely good: this is repairable, but by renovation, not gestures. Name what spoiled honestly, without prosecuting the past; fix one beam at a time; and expect the mending itself to become a new intimacy.
Professionally, Gǔ is the turnaround assignment: the inherited mess, the department gone soft through years of tolerance. Its method — three days before, three days after — means diagnose before acting and verify after. Avoid both over-severity toward what weakness caused and the drift of tolerating rot you can see.
Inwardly, Gǔ addresses inherited patterns — habits and wounds passed down that are now yours to repair. Its stance is responsibility without blame: the work falls to you though the fault may not. The sixth line adds a further dignity: some serve no throne at all, setting themselves higher work. Self-repair is that work.
A line speaks only when it is a changing line in your own casting.