In Mere Christianity, C.S. Lewis offers readers timeless insights on what it looks like, and what it costs believers, to be transformed. The goal of Christianity, this change, sounds easy enough until God has improved the surface faults that embarrass us and moves in to change our self-serving human nature, asking us to surrender all of our wishes and fears fully to Christ.

The whole goal of Christianity is to become like Christ--and to be changed is hard. Very hard. Lewis remarks, “It may be hard for an egg to turn into a bird; it would be a jolly sight harder for it to learn to fly while remaining an egg. We are like eggs at the present. And you cannot go on indefinitely being just an ordinary, decent egg. We must be hatched or go bad.”

God declares that he will complete the good work began in us, for he knows the plans he has for us, plans to prosper us and not to harm us (from an eternal perspective), plans to give us a future and a hope. This refining of our character from “nice people to new men” happens best when we keep our eyes on fixed on Christ as we hatch. Isn’t the loss of an eggshell worth wings?