I think religion is basically faith. It doesn't matter whether you believe in supernatural beings or in any political and social ideals or only in the technical progress, etc. Whatever someone may believe a true believer will put his faith or religion above everything else. That's the reason why religion causes pretty much trouble around the world.
I now believe that atheism is just a religion of believe in nonbelieving.
And brought up as an atheist this realization shocked me deeply.
"Astrology? I prefer to predict the future from the entrails of slaughtered animals. At least you will not starve if you choose this occupation.."