Acharya Prashant explains that the ability to speak does not prove the existence of a conscious entity beyond the material body. He compares human speech to the sounds produced by inanimate objects like microphones, radios, and mobile phones, noting that these devices produce sound without being conscious. He asserts that most human speech is a mechanical reaction to external stimuli, governed by the laws of action and reaction. Even during sleep or unconscious states, the body can produce sound, demonstrating that consciousness is not a necessary prerequisite for vocalization. Sound itself is described as a physical vibration resulting from material interactions or energy, making the human vocal apparatus a purely mechanical system. He clarifies that spiritual progress is not about evolving from a material state to a conscious one, but about the humble realization of one's own mechanical nature. He explains that the universe is inherently filled with vibrations and that the human experience of hearing is a biological process of interpreting these physical waves. By referencing the concept of emptiness from Buddhism and the principle of witnessing from Vedanta, he highlights that there is no central person or self residing within the body. True understanding involves recognizing that the body functions as a machine and that the perceived inner self is an illusion.
