If you want to hear my story, you won't like, it, but I can tell you with a very high degree of confidence I know the answer to this. People get mad, but literally none of this shit is real.
I went to seminary and left after studying the bible at a collegiate level because it's very obvious it's not accurate when exposed to that level of scrutiny. So I went on this journey where I basically spent the next two years with infinite money doing whatever I could to experience literally anything supernatural. I traveled all over the world, met with satanists, occultists, went to "haunted" locations, recorded everything, poured over "possession" archives from the catholic / protestant churches, took diligent notes, conducted rituals. I eventually got a degree in psychology to get a better understanding of parapsychology.
..it was all bullshit. It's always:
I had a feeling
something "psychic"
some anecdote about something someone saw
Nowadays everybody has a high def camera in their pocket but for some reason ghosts are always in 860p. People get mad because they have emotional connections to religions and supernatural beliefs but I'm telling you every objective investigation has proven its 100% absolute bullshit. These fairy-tales are relics of when our species lacked logical explanations for things.
Be mad but you're not going to find anything different. If you do, take it to the James Ramsey foundation for science and reason and collect your millions of dollars (nobody has done it yet)