An hour outside the Saudi capital of Riyadh, in the rocky terrain of the desert, a Saudi family concludes a daylong outing. A full moon illuminates the black line of silhouettes in prayer. While I sit by myself on a blanket nearby, Ahmad and his father, brother, and young sister prostrate themselves in the direction of Mecca. Observing my failure to pray, Ahmad, who is 6, approaches, clearly concerned. ‘I need to teach you something,