vajrāt api - than a thunderbolt; kaṭhorāṇi - harder; mṛdūni - softer; kusumāt api - than a flower; loka-uttarāṇām - persons above the human platform of behavior; cetāṁsi - the hearts; kaḥ - who; nu - but; vijñātum - to understand; īśvaraḥ - able.

“The hearts of those above common behavior are sometimes harder than a thunderbolt and sometimes softer than a flower. How can one accommodate such contradictions in great personalities?”