Let’s cut to the chase here. David Duncan, who is best known for his exuberant novels The River Why and The Brothers K, is one of the finest writers of spiritually minded essays in these United States. He is a writer of verve and pop and prayer and fury and wit and heart and rage and depth in the class of Cynthia Ozick, Frederick Buechner, Mary Gordon and Annie Dillard. He is hilarious. He is enraged. He is articulate and eloquent and passionate in ways that will make you gape.