This is such a great quote.
In the Wizard of Oz, Dorothy always had the power to go home but she had to understand what that meant before she was able to use the power of the red shoes to get home. I think we all have power within and it is the learning of life lessons that help us to release that power.
I also think that lessons continue to happen until you learn them. Once you learn them they become part of you, part of your power.
What are you learning?