Well, it's not actually required. Live as you like. I'll argue that exploring a little bit of each will drastically improve your sanity. I'm certainly not arguing that if you go to listen to a priest lecture you on hell once a week it will make you a better person, in fact very much the opposite. Likewise, lectures in Chemistry or Math will never, never give you true, perfect knowledge.
I cannot describe in language what I'm talking about. It has nothing to do with ordinary conceptions of what people consider "God" or "Religion". For millennia men have tried to describe what I'm trying to talk about, and all have failed.