When a call to prayer emanated from the gym’s loudspeaker, the women rushed to the middle of the floor. They left their shoes in a pile and stood in a line on a blue tarp. One used her cell phone to find the direction of Mecca. “A little to the left!” she instructed, and the group edged that way. Then they fell silent. I could hear the crinkling of plastic, gentle whispers, and the whir of traffic outside.

