Fan Casting Afterlife Antechamber in Sort by Tropes

One way of handling it is to divide the afterlife into sections: this here's the bit you're in immediately after you die, which is somewhat familiar. Over there is the afterlife proper, which we're not going to talk about. The story only concerns itself with the nearest part of the afterlife; when characters move on to the afterlife proper (often by Going Into The Light), they exit the story. Only Mostly Dead is relatively easy to fix if the soul is still in the chamber. Once it moves on, it's most likely impossible.