Why do characters die? Why, because their souls leave their bodies! You can see it happening: an exact duplicate, except winged — and (usually) white and translucent, and (sometimes) with halo and harp — starts flying up from the collapsed body. (Appears to be a confusion between the soul and angels.)
If you grab the soul and stuff it back into the body, naturally the death will end. Otherwise, [...] [tvtropes.org]