It probably depends somewhat on the religion one follows. That said, I have always been fascinated by the fictional religion of Bokononism, which is centered a

It probably depends somewhat on the religion one follows. That said, I have always been fascinated by the fictional religion of Bokononism, which is centered around "Foma". Foma are beliefs that are acknowledged to be untrue, but which will make your life better if you believe them (or act as if you believed them) anyway. I find the metacognitive aspect intriguing.