In my high school in Italy, a history book claimed that men seeked g/God because they had to find a way to deal with all the fears a human being can have, and explain phenomenons that can appear paranormal!
You could also look up Ron Hubbard and how he created Scientology actually, it's a good modern example.
That makes a good amount of sense and I've heard that before as well.
Also, I have recently been looking into scientology in terms of looking at it as like a modern day model of some of these older groups and I think it is pretty fascinating! Thanks for the response and suggestion.