My "prove it" comment was a direct reaction on LurkingLuddite's "prove it" comment - see it to find the /s in mine. I don't have studies but I have friends with education in psychology and this seems to be today's understanding of human psyche. People need something transcendental to believe in - that's why religion is so widespread. It's not a disorder, it's the natural state. I'm not a big fan of religion, so I see it as an evolutionary trap - surely adaptive in many ways, though, unfortunately.