Why do we dress up in costumes on Purim? It's fun and makes for great facebook profile pictures, but it's got to have some meaning behind it.
You see, the Purim miracle was different than our usual idea of a miracle. The quintessential miracle that comes to mind is the splitting of the Red Sea, defying the very laws of nature. Something supernatural; extraordinary.
In the Purim story, the miracle is "natural". When Haman wants to annihilate the Jewish nation, it just so happens that the queen is Esther, a Jewess. It just so happens that Mordechai had saved the king's life from a poisonous assassination attempt. It just so happens that King Achasverosh is sleepless and has this very story read to him from his royal book of chronicles on the very night that Haman comes to the king to get Mordechai hung on the 50 cubit tall gallows that he built.
Purim is about seeing Hashem's hand and guidance woven into the fabric of everyday life. Not readily apparent, but there right behind the mask, right below the surface.
Let's recognize and appreciate all of the goodness that we are blessed with in our life, and let's celebrate!