In this verse, Bhagavan Krishna elevates the concept of renunciation from mere physical inaction to an internal state of cognitive detachment. The 'city of nine gates'—the human body—is a metaphor for the finite, sensory-driven vessel of existence. To 'renounce by the mind' does not mean escaping the world, but rather shifting one’s internal identification from the ego-self (the 'doer') to the witnessing consciousness (the Atman). When the seeker realizes they are not the actor but the observer, the exhausting burden of agency dissolves, leading to true peace (sukham)., This is the quintessential Advaitic perspective: the embodied soul, when self-controlled (vashī), recognizes that while the body performs actions according to its nature (guna), the true Self remains untouched. By relinquishing the psychological claim of 'I am doing this,' the seeker stops planting the seeds of karmic reaction. One dwells in the body like a traveler in a hotel—involved in the operations of the room, yet fundamentally distinct and unburdened by its eventual decay or state of repair. This is the secret of living in the world without being of the world, maintaining perfect equanimity amidst the constant flow of duty.

True renunciation is not the abandonment of work, but the inner surrender of the sense of agency, allowing the embodied soul to abide as a peaceful witness to the body's activities.