化身 (Incarnation) refers to the embodiment of a deity or spirit in a physical form. This concept is prevalent in various religions, where a divine being takes on a human or animal form to interact with the world. For example, in Hinduism, the god Vishnu is known to have multiple incarnations, such as Rama and Krishna, to restore cosmic order. In Buddhism, the idea of incarnation can relate to the cycle of rebirth, where a being is reborn in a new form based on their past actions. This cycle continues until one achieves nirvana, breaking free from the cycle of suffering and rebirth.