Yoga Sutras of Patanjali · 1.36

विशोका वा ज्योतिष्मती ॥३६॥

viśokā vā jyotiṣmatī

Or, by contemplating the sorrowless inner light.

— Yoga Sutras of Patanjali 1.36

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).