by Philip K. Dick
I'm on a roll with Dick. I'm undecided as to whether this one is saying anything important, but it is really clever. It manages to do creationism, multiverse AND be a whole lot of fun at the same time.
I am the eye in the sky Looking at you I can read your mind I am the maker of rules Dealing with fools I can cheat you blind And I don't need to see any more To know that I can read your mind, I can read your mind
Whenever I meet someone whose world-view is really different from mine, I tend to think of this book. You know, they still believe that Saddam was behind 9/11 and hid his nukes in Syria, or Al Gore made up global warming for political reasons, or the Grand Canyon was formed a few thousand years ago ...