Exsistance
This corpse wants to understand the exsact nature of exsistance. Religion is the way that humans create a story and understanding of how the univerce works. A religions diffrence from reality can then describe how close it is to the real thing.
The problem is that fictions can be grand, complete, and (within itself) unifyed. They can be self proving, outside of reality. What this corpse is trying to understand is somthing esoteric, and experienced: the exsact mechanics of consiousness.
There do not seam to be other realities besides the one that is experienced. In the sence that, there is no seprate spiritual consiousness. There is just the consious experience of the current moment as it lives out diffrent egos and systems of memory. The "spirit relm" is a congnative structure of dreaming, it is a ego living inside of a brain thinking creatvivly. Taking phycadelics changes the experience of how a ego realates to and remebers reality.