The unwavering constancy by which a man holds the workings of mind, vital airs, and senses; that is, holds the workings of mind, vital airs, and senses back from straying onto a path contrary to scripture, for held by such constancy they do not stray; held by discipline, by concentration; the constancy being unwavering, that is, attended by constant absorption. The sense is this: such a man, by an unwavering constancy, holds, by discipline, the workings of mind, vital airs, and senses as they are being held. Constancy of this character, Partha, is of sattva.
Contemporary English rendering of the Sanskrit bhāṣya, pending scholar review.