Kṛṣṇa provides a practical definition of Yoga. It is not just a physical posture; it is a state of mind. He tells Arjuna to perform his duties while being ‘yoga-sthaḥ’, or established in equanimity. This requires giving up all attachment to success or failure. If you are elated when things go well and depressed when they go poorly, you are not in yoga. Yoga is being ‘samaḥ’, or equal, toward both outcomes. This balance allows a person to act effectively in the world without being emotionally destroyed by its fluctuations. “Samatvaṁ yoga ucyate”—equanimity is yoga. By focusing on the quality of his actions rather than the results, Arjuna can maintain his composure in the heat of battle. This inner stability is the hallmark of a true spiritualist in action.