Yoga Sutras of Patanjali · 2.33

वितर्कबाधने प्रतिपक्षभावनम् ॥३३॥

vitarka-bādhane pratipakṣa-bhāvanam

When troubled by perverse thoughts, cultivate their opposites.

— Yoga Sutras of Patanjali 2.33

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).