Verse
ज्ञानविज्ञानतृप्तात्मा कूटस्थो विजितेन्द्रियः ।युक्त इत्युच्यते योगी समलोष्टाश्मकाञ्चनः ॥
The Yogin, who is satisfied with self-knowledge, tranquil and self-poised, master of his senses, regarding alike clod and stone and gold, is said to be in Yoga.
Gītā 6·8