In a world that typically encourages us to advance—subscribing to outdated conventional notions of progress involving some perpetual motion forward, onward, and upward to some where—the idea of a “retreat” can seem somehow regressive and unappealing, even conjuring images of defeat, escape, and failure. These associations, though limiting, are not unfounded. Indeed, the phrase “beat a retreat” arose during times of early warfare in which a drummed communication, a particular beat, customarily signaled troops on the battlefield to disengage from combat.

However, the essence of retreats—temporarily withdrawing from the fray—extends well beyond military conventions and connotations....