Acharya Prashant explains that the widespread propagation of the concepts of sin and virtue is a method to suppress and trap human beings. He addresses the common statement, "We don't want to sin, but we end up sinning anyway." He clarifies that while one may not want to sin, one desires something else. He asserts that at least 99% of people are unaware that what they desire is the very sin of their lives. He explains that desire, lust, and wishes dance on one's head. Using an analogy, he says one should not disturb a dog when it is with its food or with a female dog, as these are its moments of desire, and it will bite. He then refers to Arjun's question from the Gita: "We don't want to sin, but it happens. Who makes us sin?" Shri Krishna's response, as the speaker explains, is unique: "You don't want to sin, but what you want becomes a sin." The speaker elaborates on the distinction: Arjun asks who forces us to sin, while Shri Krishna points out that what we want to do is itself the sin. The definition of sin, therefore, needs to be understood in the context of spirituality, which is about the ego (aham) and its liberation from suffering. In this spiritual context, there is only one sin and one virtue. The ego remaining drowned in its suffering and bondage is sin, and the ego becoming free from suffering is virtue. Anything that pushes the ego deeper into its bondages is sin. The fundamental bondage of the ego is its ignorance of itself. Because it doesn't know who it is, it feels it exists, and this feeling of existence is tied to incompleteness. This incompleteness gives rise to desire, which then attaches to external objects, leading to further bondage and suffering. Acharya Prashant quotes Kabir Saheb, "A leaf does not grow on a tree again and again," to emphasize that this life is a one-time opportunity. The problem with desire is that it misdirects our limited time and energy. He gives an example of a man with a disease in his lungs (a metaphor for inner suffering) whose desire is to buy a new shirt, thus ignoring his real problem. He explains that desire often comes disguised as something sacred or virtuous, like a "holy bond" in a relationship, which is actually based on desire and is therefore a sin. The issue with desire is that it diverts our energy in the wrong direction.