I am an atheist because, as my brother once said, ‘If it don’t gel, it ain’t jello’. Religion and supersition in general just does not gel. I see no reason to believe in gods or the supernatural. It took me some time and and a good deal of exploration to come to that conclusion, but in the end there is simply no evidence.
No correlation with experience. There are far too many holes in the theory, if you will. Its a simple as that.