The Lord in his divine compassion, has enabled me to understand the inner meaning of the Bible. This meaning contains deeply hidden secrets which no one has ever had the slightest conception of before now. It would be impossible to understand them without knowing what the other life is like, since this is what most all of the Bible’s inner meaning refers to and describes. Now, however, I can tell about what I have heard and seen while I have been with spirits and angels during the last few years.
I realize that many people will say it is not possible for anyone to talk with spirits and angels while still living in the physical body. Some will say I am hallucinating and some will say I am writing these things just to get a following. Others will make other objections. But none of this discourages me, because I have seen, I have heard, and I have fell. — Emanual Swedenborg, Heavenly Secrets 67-68
from Swedenborg Researcher’s Manual