I forget who posited this notion, but it was a take on recent observations in neuroscience. They claimed they found a part in the brain which they nicknamed the "God spot". The researchers linked it to the need to worship, to hearing or experiencing supernatural phenomenon, and the propensity to believe in supernatural ideas like God. So thats in line with what alot of pple have already posted here about the NEED to worship.
Again sorry for my memory lapse, but this one person claimed that this God spot evolved,...IIRC....1) as a way to work around the realization of our own mortality (and not be so paralyzed that we wouldn't survive long enough to reproduce) 2) to minimize the destructive impact a highly intelligent species as ourselves may have on each other.
So maybe in the earlier history of our species we needed to "worship" this "god" to ensure the success of the species as a whole.
Hey maybe the gnostics were really on to something with their idea of the demiurge?