My understanding of atheism, generally—and this constitutes, perhaps, the greatest impediment to a given atheist finding the path to God—is that it is an a- theistic position. Meaning, "against God" or "one who denies God," etc. If that is correct, then it is that prejudice of the question that would seem, to me, to doom the atheist to indefinite ignorance on the question. Because that which is denied is denied without evidence, not because of evidence. IE, "I deny the existence of God because I have no evidence of God." How is that any different than denying any other thing simply because one cannot observe the thing? Or, even if one changes the position to "I deny the existence of God because I have evidence that seems to conflict with the idea of God's existence," the atheist still denies on the basis of that which he does not know, rather than what he knows, or can observe.
IE, atheism is not inherently scientific, but inherently dogmatic. It is as "religious" as is theism in the sense that it informs the atheist's understanding of things that transcend the natural world.
Ironic, if you ask me.