I'd like to propose a different explanation. As we go about our lives, we are not perceiving reality, but a distorted form of reality. A distortion field (what some call consciousness) corrupts our perception such that we perceive a hostile world in which we must “look after number one” and fight for our survival. In the movie, the distortion field is controlled by “the man behind the curtain”, who we discover is actually a harmless old man. If we translate the Wizard of Oz allegory into real life, “the man behind the curtain” is each one of us. We are, simultaneously, the creators of the distortion field, and its victims. We are trapped in a prison of our own making. But it would be a mistake to blame ourselves or others for creating the distortion field, as we are “harmless old men”. Whenever we blame ourselves or others for our misfortunes, we are being tricked by the distortion field. But once “the man behind the curtain” is exposed, we know how the trick is done, we no longer live in fear, and we can forgive ourselves and others when the power of the distortion field is overwhelming. When “the man” is revealed, Dorothy experiences enlightenment. And when she returns to her Kansas home, no one believes her, because their perception is being corrupted by the distortion field. Enlightenment occurs through individual experience. It's not enough to hear a story about “the man behind the curtain”. We need to see him for ourselves.