Thoughts on the Wizard of Oz

It's obvious Frank Baum is critiquing religion, and not in a bad way. He's just saying religion is a way to get what you want out of life, but it doesn't do anything real. And he's counterplaying it with the fact that magic doesn't belong in the real world. Basically, elevating scientific materialism over supernatural explanations, but faith is benign, if it gets people what they truly want, as it was always in them to begin with.