Those, who are free of pride and delusion, have won over the defect of attachment, who are given to constant reflection on the supreme Reality, and are fully rid of desires; who have overcome the hold of pairs of opposites in the form of sukha and duhkha, they become free of delusion and reach that supreme imperishable Abode.
Analyzing the nature of the world, Krishna elucidates the means to get freedom from all its binding effects. He says true spiritual pursuit purges the mind of all its dross, like undue self-respect, delusional clinging, etc. It also eliminates the stranglehold of desires from one’s heart.
To win over the world is to rise above sukha and duhkha, the dual outcome the world produces. This makes one enlightened, and enables him to reach the imperishable Abode within.