Beliefs could be considered assumptions about what the facts really are. Assumptions about the “The rules of reality”.
These assumptions, or rules, seem to have a space reserved for them in one of our brain’s functions. And it appears that religions and myths occupy this space in most people’s brains.
This space serves as a map to your decision making, something to refer to to understand where you stand and where you want to go.
You reference this map to make thoughtful decisions. I say thoughtful because without thought, your decisions may primarily consist of bodily motivations.
This mental map that religion has temporarily occupied needs replacement, potentially one of your own choice. There may be a best choice. The best mental map. With certainty we can assume no religion so far is the best mental map.