It’s also known as *sama vritti pranayama*, born of the yogi...

It’s also known as sama vritti pranayama, born of the yogic practice of pranayama, or focusing on the breath.

Its common name, “box breathing,” refers to the fact that a box has four sides, a concept represented here by breathing while you slowly count to four for a total of four times — four counts of breathing in, four counts of holding your breath, four counts of exhaling and four more counts of holding after your exhale.

www.joshbeckman.org/notes/479394274