Gonggong is a water god of Chinese myth, a monstrous being often described with the body of a serpent and a human head, red hair, whose ungovernable rage brought devastating floods upon the world. His defining act is a cosmic catastrophe. In the best-known version of the story, Gonggong contends for supremacy, variously against the fire god Zhurong, or against the sage-ruler Zhuanxu, and, defeated and enraged, hurls himself against Mount Buzhou, one of the pillars that were believed to hold up the sky.
The blow snaps the pillar and tears the cords that bound the earth, throwing the whole cosmos out of true: the sky tilts down toward the north-west and the earth sinks toward the south-east. This mythic accident was used to explain observed features of the Chinese world, why the sun, moon and stars appear to slide down toward the west, and why the great rivers of China run east and south toward the sea, draining toward the lowered corner of the earth. The damage Gonggong causes is, in some tellings, precisely the damage that the creator goddess Nuwa must then repair, mending the broken sky with stones of five colours and propping it up anew. Gonggong thus personifies the destructive, ungoverned power of water, the floods that a riverine civilisation most feared, and his myth accounts, in the grand manner, for the very slant of the heavens and the run of the rivers.