Acharya Prashant explains the concept of Nishkam Karma (desireless action) in response to a question about its practical application. He begins by stating that as human beings, we never act without a purpose. A person who is restless, troubled, or feels incomplete will always have a purpose for their actions, which is to find peace and resolve their inner turmoil. Therefore, for an individual being, it is natural and necessary to have a purpose. The real question is what that purpose should be. The purpose of our actions should be to cure the very sickness that compels us to act in the first place. He uses the analogy of a sick person whose action of going to the hospital is driven by their illness, and the purpose of that action is to cure the same illness. He contrasts this with our usual state, which he likens to a diabetic who loves sweets. When feeling weak, the diabetic's immediate, cheap solution is to eat something sweet, which provides temporary energy but ultimately worsens the disease. Similarly, our actions, driven by desires stemming from our inner sickness, only deepen our suffering. The principle of Nishkam Karma, therefore, is to not let your desires dictate your actions. When Shri Krishna advises acting for His sake, it is a practical method. Since Shri Krishna is not of this world, acting for Him means not acting for any worldly person or thing. It is a restatement of the principle: do not act for yourself. To begin practicing this, Acharya Prashant suggests two methods. The first is to expand your circle of concern. If you currently work for only your immediate family, start working for more people, then for a principle, and so on. As the circle expands, you will realize that when your consciousness is pure, any action becomes Nishkam Karma. The second method is to contract your focus inward to discover your true self-interest. Upon realizing that no desire can fulfill this true interest, you naturally become desireless (nishkam). The ego is defined by its limited concerns, and the entire spiritual process is about breaking these limitations.