Yoga Sutras of Patanjali · 3.10

तस्य प्रशान्तवाहिता संस्कारात्॥१०॥

tasya praśāntavāhitā saṁskārāt

By the strength of the restraining impressions, the flow of the mind becomes calm and peaceful.

— Yoga Sutras of Patanjali 3.10

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).