Acting in the name of religion

Is the religion a necesity or a human invention for explain the world? We know that the ancient civilitations used to have people for explain the sourronding and hostile natural wild world. Fats are sturborn. Many people don't bilieve in the religion because of behaviour of priest and hierarchs but others have a strong necesity of believe. Why? The humans are gregarious animals. This is our natural form of survivance in that sourronding hostile. The feel of group, family and bilieves diference each people than others ones. So that the believe is an important part of our feels. These believes were leaded for priests when we started the history. As far as I know the divine eageness is diferent from religion. The first is a personal choice the second is a social conditioning. That is the point. We are conditioned by not only by the text self also