Several years ago, the president of a college suggested that students join her in “powering down” for an evening. Although the students agreed, it was with great reluctance that they laid aside their cell phones and entered the chapel. For the next hour, they sat quietly in a service of music and prayer. Afterward, one participant described the experience as “a wonderful opportunity to calm down . . . a place to just tune out all of the extra noise.”

Sometimes, it’s difficult to escape “extra noise.” The clamor of both our external and internal worlds can be deafening. But when…