Inevitably we are back to the question of God.
Great subject.
None bigger.
J. I. Packer said, "God, the most loaded word in the English language."
I agree.
All I can say is that the human spirit is so strong that I cannot imagine death ending its endurance. I have experienced a few 'supernatural' occurrences (all very ordinary, sorry 'thrill-seekers') and, very rarely, some moments when I was speaking things that were coming from a source other than me. That's the best I can do.
I thought you believed that Experiences can be decieving, and not trustworthy and that the written word in the Bible, God inspired, was a better guide than experience or subjective opinions.
iv seen a few, what people call ghosts spirits if you will, i was not drunk or on drugs, and they did not look like, night of the living dead film characters, looked like normal people, so you question life after death..it's very possible, some would say ghosts are like remnants, film of what was, a shadow an imprint, my answer is, i do not know.
Anyone can fool themselves that their own thoughts are inspired by God. Those looking for power don't even have to fool themselves, merely convince others.
We didn't get back to the subject of God; the OP introduced it, 3rd response.
Folk want experiences, try checking out mediums or holding séances.