A dead body is only called a corpse if it is under the earth (usually, but not necessarily, from burial after death). If it lies above the earth it is called a cadaver. The gods of corpses and those of cadavers are entirely separate. Some say that zombies must be placed in a coffin, and that coffin sunk in water, and that water lie above sea level. In this way neither the gods of corpses nor those of cadavers will protect the body, and the boker may achieve their evil end unopposed.