Apophis

Apophis (Egyptian Aapep) is the great chaos serpent, the embodiment of non-existence, darkness, and dissolution that threatens to devour the sun god Ra each night during his journey through the Duat. Unlike Set, who is a god within the cosmic order, Apophis exists entirely outside of creation as its antithesis — he is not a deity to be worshipped but a force to be perpetually combated. He was never born and can never truly die, regenerating each night to renew his assault on the solar bark.

Apophis represents the Egyptian concept of "isfet," the cosmic opposite of Ma'at — disorder, chaos, and the dissolution of all that exists. His nightly battle with Ra was not merely a myth but a cosmic reality that required ritual intervention: temples throughout Egypt performed "execration rituals" involving the burning, stabbing, and trampling of wax or clay effigies of Apophis, acts of sympathetic magic intended to assist Ra in his nightly battle. The "Book of Apophis" (also known as "The Book of Overthrowing Apophis") is an extensive collection of spells and rituals dedicated to this purpose.

In the Amduat and other underworld books, Apophis lurks in the deepest regions of the Duat, often depicted as an enormous serpent whose coils create sandbanks that threaten to ground Ra's bark. Set, despite his role as the murderer of Osiris, stands at the prow of Ra's night bark and uses his tremendous strength to repel Apophis with spears and harpoons — a paradox that illustrates the Egyptian understanding that even chaotic forces can serve order when properly directed. The defeat of Apophis each night ensures the sunrise and the continuation of creation, making the serpent's perpetual rebellion and perpetual defeat the engine that drives the cosmic cycle.