On concentration
Yoga Sutras 1.33
Source: verified public-domain translation.
Original text
मैत्रीकरुणामुदितोपेक्षाणां सुखदुःखपुण्यापुण्यविषयाणां भावनातश्चित्तप्रसादनम् ॥
Transliteration
maitrī-karuṇā-muditopekṣāṇāṃ sukha-duḥkha-puṇyāpuṇya-viṣayāṇāṃ bhāvanātaś citta-prasādanam
Translation
“The mind becomes clear by cultivating friendliness toward the happy, compassion for the suffering, joy in the virtuous, and equanimity toward those who lack virtue. (After Woods, 1914, in contemporary English.)”
Translation · James Haughton Woods, The Yoga System of Patanjali, 1914 (public domain), lightly modernized in diction only
Context
A practical instruction for serenity of citta, using four attitudes also known in Buddhist lists (the brahmaviharas). Yoga and Buddhist histories of this tetrad are related but not identical.