As others have already said, atheism is a response to a single claim, that a god exists.
There is no doctrine, dogma, authority figures in atheism. Atheism is not even a worldview. You can disagree with other atheists on any other position, besides your disbelief on the existence of gods, and still be an atheist.
Belief is the psychological state in which one accepts a proposition or premise as being true. If you accept as being true, that at least one god exists, you are a theist. If you do not accept that premise, you are an atheist.
There is no doctrine, dogma, authority figures in atheism. Atheism is not even a worldview. You can disagree with other atheists on any other position, besides your disbelief on the existence of gods, and still be an atheist.
Belief is the psychological state in which one accepts a proposition or premise as being true. If you accept as being true, that at least one god exists, you are a theist. If you do not accept that premise, you are an atheist.
You'd believe if you just opened your heart" is a terrible argument for religion. It's basically saying, "If you bias yourself enough, you can convince yourself that this is true." If religion were true, people wouldn't need faith to believe it -- it would be supported by good evidence.
