। ॥ १२९ ॥
In plain words
Check each sense in its own outward motion, and the outer senses are held in. This, the wise say, is the yogi's dama — the means by which the mind comes to peace.
Close to the Sanskrit
By the restraint of their respective activities, the curbing of the external senses — this, they say, is the yogin's dama, the means to the mind's peace.