"Dorothy and her friends have deep, yearning human needs — for home, knowledge, heart and courage. When they express these needs, they’re told that only the omnipotent Wizard of Oz can fulfill them. They seek an audience with the Wizard, tremble in fear and awe, then are unexpectedly ordered to do battle with Sata… sorry, the Witch, who turns out pretty feeble in the end. (Water, seriously?)
When they return, having confronted their fears, the Wizard dissembles, and Toto pulls back the curtain to reveal a mere human behind all the smoke and holograms — at which point they learn that all the brains, courage, heart, and home they sought from the Wizard had always been right in their own hands.
It’s really not much of a stretch to see the whole thing as a direct debunk of religion and a celebration of humanistic self-reliance..."
Dale McGowan, The Meming of Life Parenting Beyond Belief on secular parenting and other natural wonders