All righteous men are seen to be devoted to ascetic penances and the study of the Vedas, The Rishis also, that have many eternal regions for them, enjoy the merit of penances.
तप:स्वाध्यायशीला हि दृश्यन्ते धार्मिका जनाः। ऋषयस्तपसा युक्ता येषां लोकाः सनातनाः॥