In medieval times, a pilgrimage gave the average Joe his only break from the daily grind. For Gideon Lewis-Kraus, it promises a different kind of escape. Determined to avoid the fear and self-sacrifice that kept his father, a gay rabbi, closeted until midlife, he has moved to anything-goes Berlin. But the surfeit of freedom there has begun to paralyze him, and when a friend extends a drunken invitation to join him on an ancient pilgrimage route across Spain, Lewis-Kraus packs his bag, grateful for the chance to wake each morning with a sense of direction.

Irreverent, moving, hilarious,...