Box Breathing: A Simple Tool for Calm and Clarity Origins Box Breathing has deep roots in yogic tradition, where it is known as Sama Vritti Pranayama—“equal breathing.” The practice equalizes the length of the inhale, the hold, the exhale, and the empty hold, creating a steady, balanced rhythm that quiets mental fluctuations. The modern name and widespread use came later. Former Navy SEAL Commander Mark Divine coined the term “Box Breathing” around 2006–2007 while training SE