With his self, his inner instrument, unattached to outward contacts, the contacts being the objects, sound and the rest, that are touched, being free of fondness for objects, he finds the happiness that is in the Self. With his self joined with the yoga of Brahman, absorption in Brahman, intent on it, he gains imperishable happiness, he pervades it. Therefore one who seeks the imperishable happiness in the Self should turn the senses away from the momentary fondness for outward objects. And here is a further reason to turn them away.
Contemporary English rendering of the Sanskrit bhāṣya, pending scholar review.