Atheism?

What is an Atheist? Does he deny the existence of God, or does he simply refuse to accept the concept behind God? Now thats an interesting thing: "Concept behind God". God's concept is basically nothing but an idea where a being denoted as God can do anything and everything. So, does the atheist chose to ignore that "being" but acknowledge its presence, or does he simply deny that there is such a "being"? If it is the former, then he just needs a paradigm shift or what we call enlightenment, which he will undergo one day, but if it is the latter, then the atheist is denying his own existence.
Why? Because we are all Gods.
Very few people have realized it and their followers have formed religions and shielded the truth.