This book will mess you up, and you will be better for it - at least it should. Bonhoeffer combats what he coins "cheap grace" (i.e., grace with no demand, no cost, no cross). He demonstrates that the life of discipleship is the life of crucifixion. But this is not from some pussified metrosexual pastor, wearing his tight button-down, throwing around terms like "imitatio christi." No, this is from a man who did it, who faithfully followed and bore witness to Christ until the end when he was hung naked with thin wire.
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I just read this quote from the camp doctor who witnessed his death: “I saw Pastor Bonhoeffer ... kneeling on the floor praying fervently to God. I was most deeply moved by the way this lovable man prayed, so devout and so certain that God heard his prayer. At the place of execution, he again said a short prayer and then climbed the few steps to the gallows, brave and composed. His death ensued after a few seconds. In the almost fifty years that I worked as a doctor, I have hardly ever seen a man die so entirely submissive to the will of God.”