One who is self-restrained, whose understanding is unattached everywhere, from whom affections have departed, obtains the supreme perfection of freedom from action by renunciation. Learn from me, only in brief, O son of Kunti! how one who has obtained perfection attains the Brahman, which is the highest culmination of knowledge. A man possessed of a pure understanding, controlling his self by courage, discarding sound and other objects of sense, casting off affection and aversion;