a. Uncle Sam and Auntie Edna.
b. Uncle Henry and Auntie Em.
c. Uncle Horace and Auntie Emerald.
But in a metaphysical sense, where are the home, the brains, the heart, and the courage, really? They"re all within, of course! Dorothy and her friends think that they"re "off to see the Wizard," who is projected as a kind of God figure, but then they find out that the Wizard isn't what he is reported to be. (He says, "I"m a very good man; I"m just a very bad wizard.") The lesson in this movie is that we are not to turn to a God outside us, in a physical heaven or an Emerald City, but within us. As Jesus said, (Luke 17:21) "For, in fact, the kingdom of God is within you." And as Charles Fillmore wrote, "The supreme realization of man is his unity with God".
The Wizard turns out to be a person with some metaphysical understanding of these concepts, however. He helps the Scarecrow, Tin Woodman, and the Cowardly Lion realize that what they seek is within, and was always there. He tells the Scarecrow that "anybody can have a brain; that's a very mediocre commodity," and then awards him an honorary Th.D. (Doctor of Thinkology). He inducts the Cowardly Lion into the Legion of Courage for "meritorious conduct, extraordinary valor, and conspicuous bravery against wicked witches." He presents the Tin Man with a heart, and says, "And remember, my sentimental friend, that a heart is not judged by how much you love, but by how much you are loved by others.".
Dorothy also learns that the kingdom is within her. Glinda, the Good Witch, who may be seen to represent the ever-loving, gentle Holy Spirit guiding Dorothy toward that "supreme realization," tells Dorothy that she has always had the power to go home. However, "She had to find it out for herself," Glinda says. (That's the way it is with an individual's realization of God.) Dorothy has only to click the heels of the ruby slippers together three times and repeat, "There's no place like home.