Acharya Prashant discusses Mahatma Buddha's significant contribution to philosophy, specifically the rejection of the individual soul, a concept known as the principle of no-soul. He explains that India historically struggled with this idea because it dismantled the traditional notion of a permanent self performing actions. Referring to the teachings of Shri Nagarjuna, the speaker highlights that nothing exists independently; everything is interdependent. Concepts like pleasure and pain, or soul and non-soul, are mutually dependent, meaning they lack inherent, separate existence. This interdependence implies that misconceptions are also empty of reality because the opposites they rely on are fundamentally inseparable.