Apep is chaos given the shape of a serpent so vast that its convulsions are said to cause earthquakes and its roar answers the storm. Some traditions hold that he predates creation itself, an uncreated force from before Ra brought order into being; others say he formed from Ra’s own discarded umbilical cord, chaos disturbingly born from order’s own beginning. Either way, he belongs less to the created world than to its constant, threatened undoing.
Each night, as Ra’s barque sails the twelve hours of the Duat, Apep lies in wait to swallow the sun and plunge existence back into permanent darkness — a battle Ra’s crew, Set foremost among them spear in hand, must win afresh every single night, since Apep, unlike other defeated gods, is never killed for good. Egyptians fought him on earth as well as in myth: temple rites had priests model his image in wax or draw his form on papyrus, then spit on it, trample it, and burn it while reciting execration texts, on the belief that ritual destruction below strengthened Ra’s actual victory overhead. Solar eclipses and violent storms were read as unsettling evidence that, on rare occasions, the serpent had very nearly won.