A person who is full of hot air is one whose speech impressive compared to his or her actions. BY the time Oz takes off his balloon, it was clear that he’s not what people think he is. Many thought Oz was a wizard. Oz did not have any magical powers; he only knew to create illusions.  The wizard authority in the story is fabricated despite him being an authority figure. The wizard continues to trick his subjects even after being exposed as a fake. He does not know how to build the balloon properly. This is evident where he leaves a landing platform then floats in the sky desperately.

Dorothy’s friends, Tin Woodman, the lion and the scarecrow set out for Emerald city with hopes that the wizard can grant them their wishes. The symbolic point is the three had low self-esteem that they did not notice they had all that they wished for along. There was no need for all of them. The act symbolizes the way people underestimate others not knowing he can surprise them.