dhw: If there really is a soul that survives the body, why doesn’t every clinically dead patient have an NDE?

Certainly a valid question, just as one might ask why do the NDE'ers have an episode. I had a Catholic friend who had one during surgery, and was frightened that she had done something wrong. Told no one about it until she had a chat with her priest who reassured her, and then discussed it with me for further reassurance.