From The Book of Our Heritage by Eliyahu Kitov...
The Month of Nisan: The Month that is Redemption
One who experiences redemption has emerged from darkness into light. One who has never suffered the oppression of bondage will not appreciate redemption. The very essence of redemption is the freedom which has its source in the bondage itself. Had Israel not been enslaved, they would never have experienced true freedom. Once they were enslaved, that very enslavement gave rise to their redemption. From the midst of that darkness -and from nowhere else - light burst forth. Our Sages taught: Israel said to God, "Master of the Universe, when will You redeem us?" God answered: "When you descend to the lowest level - at that moment I shall redeem you" (Yalkut Shimoni 190).
~ CHODESH TOV ~