You pay a regular tithe to support the community. In public, you wear symbols that identify you as one of the faithful. When you gather with other adherents, it’s often in small, close rooms. Breathing gets heavy; bodies sweat. If anyone speaks, it is to moan, or occasionally to shout in triumph. Exercise classes often function just as much like a church as they do like a gym: They gather people into a community, and give them a ritual to perform. The comfort of clipping your shoes into a beloved SoulCycle bike or landing the first blow on your favorite heavy bag at a boxing gym is not so far off from the reassurance of arriving at temple on a Friday. You know who will be leading the evening; you can anticipate the general contours of its energy. You know you will recognize familiar faces among the participating crowd. As more Americans have moved away from organized religion (a 2015 Pew Center study found that 23 percent of the adult population identified as “religiously unaffiliated,” up from 16 percent in 2007) they have also moved toward new forms of community building, as well as new ways to seek mental clarity and spiritual experiences. The gym is a popular avenue for this kind of searching, in part because it mimics the form of traditional religious services. First of all, it creates community for us: a place where we can congregate to actively socialize. “I think I’ve figured out what [people are] really drawn to, and that’s the community aspect of it,” says Sam Rypinski, who owns an LA gym called Everybody, which aims to be diverse and inclusive. “We’re living in dark times; we’re very segregated and separated from each other. We’re cut off by technology. We don’t connect with our bodies; we don’t connect with each other. So if there’s a space that encourages that on any level, people are so happy to be there.” As Rypinski notes, beyond helping us meet like-minded people, exercise helps us ground ourselves in our bodies the same way that religious ritual can (with movements like crossing ourselves, or bowing and kneeling). Many middle- and upper-class people spend most of their days ignoring their physical selves in favor of mentally tasking work;