For one who wishes to mount, who is not yet mounted, who is unable to stand firm in the yoga of meditation. For which such one? For the sage who wishes to mount yoga, the renouncer of the fruit of action. The cause, the means, is said to be action. But for that same one, once mounted on yoga, the cause, the means, is said to be quiet, repose, the turning-away from all action. The more he turns away from actions, the more, being free of strain and master of his senses, his mind is gathered; and being so, he soon becomes mounted on yoga. So too Vyāsa has said: 'a brāhmaṇa has no such mind as when there is oneness, evenness and truthfulness, and good conduct, steadiness, the laying-down of the rod, uprightness, and, step by step, the withdrawing from actions' (Mahābhārata, Śānti 175.37). Now it is told when one becomes mounted on yoga.
Contemporary English rendering of the Sanskrit bhāṣya, pending scholar review.