Chametz and Matzah are very similar words. Chametz (spelled Ches, Mem, Tzadik) and Matzah (spelled Mem, Tzadik, Hey) have a difference of one letter - a Ches and a Hey. Dough when it rises too much becomes chametz. If you look at the difference between a Hey and Ches, a Ches is a Hey in which the line "grew too much" and reaches the top. Meaning that when we let our egos, our sense of self, rise - when we let our own selfish desires rule us instead of doing what Hashem wants of us, we have an issue of chametz. Someone recently told me that ego stands for Easing G-d Out.

Tonight as we have searched for the chametz in our homes, let us also search for the chametz inside of us.
Tomorrow as we burn the chametz that we have found, let us also burn the chametz that we have found inside of us until it is an unrecognizable mass of ash.
As we celebrate Pesach this year, let us each be liberated from our own sense of Mitzrayim, the things that are holding us back from fully doing Hashem's will.

As we were brought out of Golus Mitzrayim all those years ago, may we be brought out of this golus, this olam hasheker, so that the essence of our neshamas may shine and we can serve Hashem without any hinderance