Spoiler Alert: The ruby slippers weren't always red. The famous sequined shoes were originally silver, like they are in the Oz books. But MGM studio head Louis B. Mayer wanted to show off Technicolor, so he did.
"You've always had the power my dear, you just had to learn it for yourself." - Glinda, the good witch, The Wizard of Oz. Wow if we would learn that our power is from God and we already have it? How powerful we would be!