Commentary: "Sr. Joan Chittister never disappoints; but here she has exceeded even her own high standards. Happiness is a penetrating, insightful, wide-ranging study of its subject, and yet it is much more than that. It is pastoral. A thoughtful reader will be wiser for having read it, certainly, but also more complete and, I would wager, more at peace."Phyllis Tickle -- author of The Great Emergence: How Christianity Is Changing and Why