Acharya Prashant explains that silence is the very form of Brahman and is not merely the absence of sound. Silence signifies the cessation of the mind's fluctuations, which are responsible for the perception of the world. Just as a dream feels real while dreaming, the world feels real as long as the mind is active. Silence is the state where the mind does not function, leading to liberation from both dreams and the world. When the mind is absent, only Truth remains. This Truth is Brahman, and because it exists in the absence of the mind, silence is identified with Brahman.