Keepसर्वेन्द्रियपदातीतो यदा कर्तेह विज्वरः ।कुर्वाणः सर्वदा खेदं न कदाचन गच्छतिIn plain wordsWhen one who has passed beyond the reach of all the senses acts here as agent, free of fever, though always acting he never comes to dejection at all.