Chapter 6 · The Yoga of Meditation · Krishna said
Bhagavad Gita 6.20 — Content in the Self
यत्रोपरमते चित्तं निरुद्धं योगसेवया। यत्र चैवात्मनात्मानं पश्यन्नात्मनि तुष्यति ॥
yatroparamate cittaṃ niruddhaṃ yogasevayā | yatra caivātmanātmānaṃ paśyannātmani tuṣyati ||
Meaning
When the mind, restrained by the practice of yoga, becomes still, and one sees the Self by the Self and is content in the Self —