I'm not sure why religious people have such a hard time comprehending the idea that a person can just be non-religious. I just can't wrap my head around it.
I can't understand why non-believers have such a hard time comprehending that their non-belief is very bit as much a religion as any theistic belief. They have a self-righteous zeal on the point that would put many theistic believers to shame.
If only my faith in God could only match the self-confident insistence of an atheist's adamant denial of God. But I am weak, and not nearly so perfect in my faith as even an average atheist is in his.
Corollaries of Atheism codify lexis and praxis in a form very similar to such codifications in other religions. I've linked a couple of these earlier (Humanist Manifestos I and II). If you think about it, there are numerous practical outworkings of the belief there is no God that serve to designate atheism as a religion. A religion needn't have a God with the attributes of invisible, incomprensible, omniponent, omnipresent, etc. to be recognized as such. The God can be man.