Here's how it unfolds:
* Dorothy and her friends discover the Wizard's secret: After overcoming various obstacles, Dorothy and her companions, the Scarecrow, Tin Man, and Cowardly Lion, finally reach the Emerald City.
* The Wizard's facade: They are greeted by the Wizard, who appears to be a powerful, awe-inspiring figure. However, he is behind a curtain and speaks through a booming voice, creating an illusion of grandeur.
* The truth is revealed: Through a series of events, the curtain is pulled back, and the Wizard's true form is revealed. He is an ordinary man, manipulating machinery and using smoke and mirrors to create his magical appearance.
The Wizard's true identity, a simple man behind the curtain, highlights the importance of courage, compassion, and self-belief. The Wizard is able to inspire others with his "magic" even though he is not truly powerful, demonstrating that true power resides within ourselves.