Lately, I've been familiar with three ideas. One is from the book God Delusion by Richard Dawkins. He argued that maybe religion is a side effect of other evolutionary traits which enables us to maybe work as a team. Then Yuval Noah Harari introduced me to the knowledge illusion in his book 21 Lessons for the 21st Century, which enable us to believe to know something which we don't know personally but is known to someone somewhere. And in Denial of Death Ernest Becker explained that Sigmund Freud did a great work on how people rather blindly follow people in a book
(I have to read that). It is their urge to follow someone, to feel secure, like in the arms of their parents.
Now, I wonder, are they somehow connected in the depth of our biology?
Is it some just different manifestation of the same psychological condition? It can be. The blind belief that I know, or my God/Leader is right somehow looks emotionally similar to me.
Upon further inspection, it feels like faith has some obvious biological dependencies. Our larger neocortex allows us to be more social. It also allows us to mentalize deeply nested ideas:
From the 3rd level onwards, it allows us to have religious faith. But, faiths by themselves are memes having their courses through generations by non-biological means. Although knowledge illusion and group psychology explain why someone will believe in a specific dogma in the first place, the belief that knowledge illusion invokes is different from the faith that religious experience brings in. Faith is more akin to schizophrenia than communal belief.