When someone asks me whether I go to church, this is what I should say.
“Sure. I’m an Atheist, but I go to the First Church of the Fourth Wall.”
They might say “what in the world is that?”
And I’d say, “We all believe that life is some form of fiction for someone else’s entertainment, so we believe that we need to live lives that are as entertaining and dramatic as possible. We have three different sects at the moment, but because there aren’t that many of us we all still go to the same church.
“One sect of this church believes that we’re all in a movie or a TV show. Another says that we’re part of a webcomic or other type of serial graphic story. The third, the one I’m part of, believes we’re all player characters in some giant role playing campaign, and I really want to have a word with my GM!”
The GM is not a god, by the way. The Game Master, or Mistress, is very fallible, very human, often loses notes, and can occasionally be bribed to fudge die rolls with pizza.