When ancient man first looked around, there was no rhyme, reason or explanation for the events that occurred. There was no way to tell what the weather would be the next day, so violent storms were a mystery. Where people came from, how they came to be in their current circumstances, and even their ability to tame animals was often something they could not record because they had no system of writing. Seeking something more from the world, ancient man decided that a single being or a group was responsible for the state of their lives, and that is why religion came into being.
There are many different religions in the world today, and each of them has their own unique belief system. While there are some that have remained with the classic example of a father figure controlling everything in the world, there are others that promote the belief that everything in the world is an illusion. Still others are offshoots of these basic ideas, but they have found their own paths to explain life.