When the author, approaching eighty, receives a flyer announcing a week of retreat ─ vacation, fun, and adventure ─ he says, "Why not?" John, also known as Hutch, joins eight others on a journey into the deeper recesses of self and into the outer beauty of the Mayan Yucatan peninsula, including the ancient ruins of Ek Balam. His days unfold with smudging, sacred dance, and other rituals of in-depth personal exploration to see what truly...