In this verse, Krishna addresses Arjuna as 'Purusharshabha'—the bull among men—signaling that true greatness is not found in the external conquest of kingdoms, but in the internal mastery over the dualities of existence. By asserting that the wise person remains unperturbed by the fleeting sensory contacts that cause distress or pleasure, Krishna is defining the birth of the 'sthitaprajna' (the person of steady wisdom). This is not merely about suppressing emotion; it is about the fundamental realization that the Atman, the true Self, remains untouched by the shifting tides of the material world. When one ceases to project their identity onto the changing circumstances of life, they transcend the cycle of reactions that keep the mind tethered to samsara. The phrase 'amritatvaya kalpate'—becomes eligible for immortality—reveals the ultimate goal. Immortality here is not merely surviving death, but the experiential realization of one’s eternal nature. By becoming equipoised in joy and sorrow, the seeker stops feeding the ego’s craving for pleasure and aversion to pain, thereby exhausting the karmic momentum that binds them to mortality. This is the shift from being a victim of fate to being a witness of existence.

True immortality is attained not by changing the external world, but by anchoring the consciousness in the unchanging Self, which remains unmoved by the inevitable fluctuations of pleasure and pain.