Three qualities mark the person who reaches the highest state: an intellect free from attachment everywhere, complete mastery over the self, and the absence of craving. Through inner renunciation, such a person attains 'naishkarmya siddhi' — the supreme perfection of freedom from the bondage of action.
Naishkarmya does not mean inaction. It means acting without generating karmic chains. When the hand moves but the mind does not grasp, when effort flows but ownership does not cling — that is naishkarmya. The body works; the spirit remains untouched.
Notice that the sannyasa here is not about wearing ochre robes or retreating to a forest. It is about the inner state. 'Asakta-buddhih sarvatra' — unattached in every situation. The marketplace or the monastery, the kitchen or the cave — the location does not matter. What matters is whether the mind has let go.