Flip Through Images. Satan: The Imaginary Enemy of Adults. Best first. This would probably be a lot more persuasive if you had some reason to actually believe that Satan isn't real. A theist shifting the burden of proof
Who are we talking to? Ourselves, of course. Lonely kids make up imaginary friends, well adults make up God. Nor do we like to be helpless. The desire for an all-powerful, caring, father figure is completely understandable. On the other hand, are we really alone in our heads? The Me observer is so close to the thoughts that it thinks its doing the thinking.
How is God distinguishable from an imaginary friend?
I want to start with informing you about what an imaginary friend is. An imaginary friend is an invented person, animal, or character that is created. The term ordinarily refers to such characters created by children, but the same phenomenon is observable in adults. The inventor will act as if the imaginary being is physically present by talking to it.
When I first saw the phrase "God is an imaginary friend for adults" it struck me as one of those throw-away rhetorical insults, like " Against abortion? Don't have one ", that don't stand up to rigorous scrutiny. Certainly it is thrown about like an insult, to convey 1 that religion is childish, and 2 that God does not exist. The more I though about it, though, the more I like it. I'm a skeptic, and I can't accept superstitions or supernatural entities, but I can't deny the existence of God as a social phenomenon.