Who gave Billy permission to go back to Earth?

In the afterlife, Billy meets a heavenly official known as the Starkeeper, who informs Billy that he did enough good in his life to get into heaven. He also tells Billy that as long as there is someone in the living world who remembers him, he can return for a single day to try to make amends.

Asked by Rachel Bortles · Last updated 5 years ago · 26.8K views · SOURCE