Why do people feel they need religion in their life ???
anthropologically speaking, people feel a need to worship because at some time in our distant past, those personality traits were highly valued. religious belief, even if only small and tribal, kept the tribe unified and together through tough times. the ones who survived, and were able to pass their genes (and memes) on, were the ones that kept the tribal status quo, where knowledge about mysterious phenomena was handed down from the tribal elders. there were rewards for upholding traditional belief system of elders in the tribal setting. those who did so were rewarded with wives. those who wanted to do things their own way, were ostracized (or left on their own), and often may not have survived long enough to pass any genes on.
don't get me wrong. i'm not saying there is a religion or spirituality gene. religion and spirituality are cultural units called memes, that are passed down from generation to generation. all that was required genetically, were people who were smart enough, and therefore willing enough to work within a fixed system like a tribe, without setting off on their own out into the cold dark world. people who were smart enough (genetically) to work together. memes were then ready to transfer via a cultural framework.
and after time, no one questioned why there was belief without evidence. why? because it makes people feel good. it makes people feel safe. no one wants to think that there is no meaning to the universe outside of ourselves. no one wants to think that we are all alone with our problems, and that "bad" things happen to "good" people for no other reason than that nature is cold and blind and unconscious. and so people need religion in their lives, superficially speaking.
TS