Edward Tulane Chapter 22

In Chapter 22, Edward is walking up to the house on Egypt Street. Once inside, he sees Lucy, Bull, Nellie, Lawrence, and Bryce are inside. He looks for Sarah Ruth. He's told she's outside. He goes outside and and they point out the Sarah Ruth constellation. Edward wants to be with her and wishes he had wings. Suddenly he notices he has wings and he begins to fly towards Sarah Ruth in the sky. They beg him to stay and Bull pulls him back.  What is happening in this chapter? What makes you say that? Explain. What questions do you still have?