Acharya Prashant explains that in the realm of concepts and diversity, it is essential to recognize only two primary entities: the mind and the Atman (the Self). The mind perceives everything as objects, sounds, and sights, viewing emptiness and silence as negative absences because it considers only its own perceptions as 'present'. However, from the perspective of the Atman, emptiness and silence are the only reality. He emphasizes that these two terms are essentially one and the same, and differentiating between them is a product of a mind trained by the world to see false diversity.