As we watch a movie we suspend our disbelief, and if it is a well made movie, we believe in the movie for its duration. But once we leave the theatre, we no longer suspend our disbelief, otherwise we would be psychotic.
However when we go to church, or mosque, synagogue, or temple, we suspend our disbelief as long as we are there. But when we leave, we continue to suspend our disbelief, and so we are psychotic. But all the other members of the congregation share our psychosis, so we just take it for granted as nothing out of the ordinary.