Keepपूर्वमिष्टमनिष्टं त्वमनिष्टं चेष्टमित्यपि ।परिकल्प्य तदभ्यासात्तत्ततोऽपि परित्यजIn plain wordsFirst, having imagined the desirable as undesirable and the undesirable, too, as desirable -- then, through abhyāsa of that, let go of that as well.