Introduction to the altar: The religious belief of the Qiang people is a polytheistic religion that believes in "animism", mainly ancestor worship of nature worship. It can be roughly divided into four categories: the first category is the gods of nature such as gods of heaven, sun gods, mountain gods, tree gods, fire gods, goat gods, etc.; the second category is the ancestor gods among domestic gods, because the gods are located in the corners of the house. Here, the Qiang people call them the "Horned God"; the third category is the god of labor crafts, such as the blacksmith god, the stonemason god, and the carpenter god; the fourth category is the village god and local god, such as the stone sheep and the stone dog.