Acharya Prashant explains that Brahman is identified with the tail of the body because the tail's primary function is to provide stability. He asserts that the universe and the individual find stability only in Brahman; without it, one remains restless, suffering, and chaotic, moving without finding peace. The phrase "Thou art that" (Tat Tvam Asi) signifies that one's real self is revealed only when attachments to worldly identities and objects are removed. When identification with roles such as father, employee, or specific names ceases, one is left with an emptiness or silence that cannot be described as any particular thing. Acharya Prashant emphasizes that "That" does not refer to an objective existence that can be touched or reached, but rather serves as a declaration that one is not the person they have assumed themselves to be. It is an invitation to reinvestigate one's identity and look beyond the superficial names and roles that prevent true inquiry.