Yoga Sutras of Patanjali · 4.22

चितेरप्रतिसंक्रमायास्तदाकारापत्तौ स्वबुद्धिसंवेदनम्॥२२॥

citer apratisaṅkramāyās tadākārāpattau svabuddhisaṁvedanam

Consciousness, which does not move from place to place, becomes self-aware when the mind takes on its form.

— Yoga Sutras of Patanjali 4.22

Source: Sanskrit attributed to Patanjali (c. 2nd century BCE – 4th century CE). Public-domain English readings drawn from Swami Vivekananda's 'Raja Yoga' (1896) and Charles Johnston's 'The Yoga Sutras of Patanjali' (1912).