The narrator of the song realizes he has pushed life to far. He knows that he is about to die if he keeps going like he is. In fact, he is so close to death that an angel, or possibly even God himself, is communicating with him from the other side. When he realizes he needs a second chance to fix his life, he asks the angel, or God, which ever it is, for that chance, as well as to bring him back to heaven when his time finally comes. It isn't said if he receives this chance or not. At least this is what I get out of this song.