As its name suggests, the mind-body-spirit category of books embraces a dizzying array of subjects, and the many Americans who have become unmoored from traditional faiths, but still have a spiritual hunger and curiosity, are often drawn to these titles. Whether they want to look into the future, integrate body and soul, or learn about lost civilizations and religions past, they’ll find plenty of resources at the bookstore, as publishers present new titles for fall and the coming year.