I dare not describe this - just take two minutes to do a little internet research about Henry Darger. An image search, too. I learned about it from a movie titled "In the Realms of the Unreal" - which probably lays out the story in a better order than the internet, if you have that kind of time.
It makes me feel
a) sad about what the guy had to go through as a kid
b) amazed at (and lucky/honored to see) the art
c) hesitant to agree with PZ/Dawkins/Hitchens about eradicating religion
d) desperate to learn/make more stuff (y'know, creative) before I die
e) in a hurry to reproduce
Hey, I like little white girls too. I like them so much I used to be one.
I do suspect (as do some of the people who reviewed some $450 (used!) book on Amazon about the guy) that most of the 15,000-page story he wrote is less coherent than the excerpts - otherwise it would be more available by now (like A Confederacy of Dunces).
If anyone knows some other good outsider art, lemme know. For a quick hit, look at
The Throne of the Third Heaven of the Nations' Millennium General Assembly, which may blow you away. Doesn't it feel good? (It feels better to see it in person.)