Immortality is a state of being in the Xevv multiverse, where one's soul exists but (usually) has no body, and is stuck somewhere between Flux and Reality. When one is Immortal, they cannot conceivably die or degrade, nor return to the Gods or Reality. It is similar to being in Limbo, but it is possible to obtain a body while Immortal, if a God grants you one, or you already have one.