Then the Lord said: “Kaunteya! In the ocean of saṃsāra the waves of pleasure and pain come crashing in without pause. The one who is not moved by them in the least, who does not lose the evenness of his citta, and who stands firm in his resolve (that is, stands firm in niṣṭhā), becomes a ‘dhīra’. Only the one who has the strength and the capacity to reject the pairs of opposites that objects bring is a man of Buddhi. Only one who has such Buddhi do they call a ‘dhīra’.”