Personally I think it divides. Religion is the worship of a mythical being like God, Buddha, Shiva and so on. Each religion thinks that theirs is the correct one and all others are wrong. Religion has caused more wars and deaths over the centuries than anything else. Most religions follow a book of instruction like a bible, torah, Talmud and so on in which the rules of their particular religion are set out. Even Christianity is divided with Catholics, Protestants, Methodists and so many more divisions, each of which has their own set of rules.