Book excerpt: The Road Within is a book of transformation, of lessons learned, maps drawn and burned, and spiritual blessings bestowed by that great and hard teacher -- travel. Learn what mystics and saints have always known -- that wondrous things await people who are in touch with themselves, with the world, and with God. Authors featured in this very different kind of travel book include Annie Dillard, Huston Smith, Natalie Goldberg, Andrew Harvey, Barry Lopez, and Bill Buford.