All religions have the function of explaining the world in terms of absolute truths revealed to people at some point in the past. Most religions postulate the existence of one or more intelligent entities responsible for the existence of everything.
Most religions deny the existence of death.
There is usually an implication that part of the conscience of every human being is eternal. This manifests itself in beliefs of reincarnations and eternal life at the end of the world . There are many ways of classifying the religions of the world. One classification is to describe a religion as being either linear or cyclic . Christianity, Islam, Judaism, and Parsees are linear.