Acharya Prashant explains that everything we perceive is essentially the past because of the time it takes for light and sound to reach us. He uses the example of stars, many of which may have already ceased to exist by the time their light reaches Earth. He clarifies that 'living in the moment' is a flawed concept because time consists only of the past and the future; the 'present' does not exist as a segment within the stream of time. Instead, living in the present means being detached from the flow of time and standing on the 'shore' of truth. This state is characterized by being 'Nitya' (eternal) and 'Satya' (truth), where no change occurs. The speaker discusses how human desires are always future-oriented, based on the false belief that the person who performs an action today will be the same person who experiences the result in the future. He points out that both biologically and spiritually, a person is constantly changing; cells are replaced, and the ego is a transient natural phenomenon. Therefore, working for a future self is like a three-year-old ordering a toy that arrives when they are thirteen and no longer want it. He emphasizes that only 'Nishkam Karma' (selfless action) performed in the present is meaningful. He concludes by advising against relying on anything changeable or worldly, as true living involves anchoring oneself in the unchanging truth rather than the illusions of the past and future.