I saw this Dvar Torah in R' Pinkas's sefer on Purim and I would like to share it with you.
R' Pinkas asks the question, why are we encouraged to get so drunk on Purim that we can not tell the difference between Mordechai and Haman? Since when does the Torah encourage such behavior?
R' Pinkas writes that Mordechai did not gather the adults who had eaten at the meal of Achashverosh. Rather, he gathered all the children to fast in an effort to inspire Hashem's mercy to save the Jews. When Hashem saved the Jews in the story of Purim, it was Hashem giving us a gift. He, Himself, came down from Heaven and made everything happen to save us in a 24-hour period. From Haman eating with Ester and Achashverosh, to being hung the very next day.
R' Pinkas explains that when a person is so drunk that he can not even tell the difference between Mordechai and Haman, then who is taking care of him? At that point, a person realizes that Hashem is doing everything for him. Not just then, but at every point in his life. When a person thinks he is accomplishing things by himself, then Hashem says, "I can not help the person who does not need help." Hashem comes to save us when we realize the "Ain Od Milvado" - That nothing exists outside of Hashem!