All Christians yearn to live at the center of God's will. But how to discern his will is an art that eludes many of us. And the advice we get often conflicts. Some tell us to look for a divine "blueprint"-the one perfect plan for our lives that we need to find. We are encouraged to search the Scriptures and hunt for signs, trying to uncover the map of our lives that God has drawn. Others have rejected the blueprint school of guidance for the "wisdom...