“Illusions: The Adventures of a Reluctant Messiah” by Richard Bach focuses on the limitations people put on themselves and how we are brought down by these limitations.
It's about the author, Richard Bach who lives by barnstorming, which means he flies around the Midwest selling rides in his airplane for $3 for ten minutes in the air. Used to happen all the time in the thirties, but by the time Richard's doing it, it's already the seventies. Not many barnstormers left. So you can imagine Bach's