Verse
रागद्वेषविमुक्तैस्तु विषयानिन्द्रियैश्चरन् ।आत्मवश्यैर्विधेयात्मा प्रसादमधिगच्छति ॥
It is by ranging over the objects with the senses, but with senses subject to the self, freed from liking and disliking, that one gets into a large and sweet clearness of soul and temperament in which passion and grief find no place; the intelligence of such a man is rapidly established (in its proper seat).
Gītā 2·64