One of the first books I read which gave me a new perspective on the spirit world is Carl Wickland’s Thirty Years Among the Dead. which he wrote in 1924. Initially it was a little overwhelming to realize how enmeshed living humans as incarnated beings are with discarnates. I spent a couple of days mulling it over, and then plunged into Dr. Wickland’s book, discarding my disbelief, and truth be told, my fear over what he was describing.
Stranger Than Fiction Stories by M.P. Pellicer