Contemporary Christianity is afflicted with two problems: First, our spiritual life is often bland and lukewarm. Distracted and fragmented by our lives, and malnourished on conventional piety, we feel out of touch with the God described in the Bible as a consuming fire." Second, we don't know how to make sense of suffering, especially the pain of spiritual darkness and aridity. The answer to both of these problems is passion. In God in the Dark, Susan...