Then The Investigator had a realization, the reason we were not told about this stuff, ""They did not know about it!""
Why didn't they know it was there? They were not told about, Why? Simple, it was a ""Normal people do not talk about it."" Why not, simple, it's Beliefs of where you are on Earth.
This is a subject Charlie the Writer, has some experience about and has researched We are going to talk about this subject, while we have a cup of coffee sitting outside our favorite coffee shop.
Charlie can't prove anything in this writing and neither can anyone else, Charlie believes it is true, but ""Only the Shadow knows.""