5.12 Tyaktva, giving up; karma-phalam, the result of work; yuktah, by becoming resolute in faith, by having this conviction thus-'Actions are for God, not for my gain'; apnoti, attains; santim, Peace, called Liberation; naisthikim arising from steadfastness. It is to be understood that he attains this through the stages of purification of the heart, acisition of Knowledge, renunciation of all actions, and steadfastness in Knowledge.
On the other hand, however, he who is ayuktah, lacking in resolute faith; he, phale saktah, being attached to result; thinking, 'I am doing this work for my gain'; kama-karena, under the impulsion of desire-kara is the same as karana (action); the action of desire (kama-kara; under that impulsion of desire, i.e. being prompted by desire; nibadhyate, gets bound. Therefore you become resolute in faith. This is the idea.
But one who has experienced the supreme Reality-