We are hosts to an extradimensional bot fly, which lays its larvae upon us. The catch is that the very extradimensional botfly larvae that gestate within us is, within our 4 dimensions, the substrate of our host-consciousness. Our birth, life, and death are experienced as a result of this extradimensional botfly.
Our life ends when its gestation period ends. As it emerges from us, no longer, a gestating larva, our soul leaves our body.