Acharya Prashant addresses the question of whether the 'Atma' is the same as 'Ruh' in Islam or 'Spirit' in Christianity by stating a clear 'No'. He explains that Atma is neither Ruh, nor soul, nor spirit. Atma is simply Atma. The most appropriate English word for Atma, he suggests, is 'Self', and it is crucial not to confuse it with 'soul'. The concept of Atma, as presented in Vedanta, is a specific, central, and ultimate element that is not found in other philosophies or religions. While other faiths may have concepts like God, the Trinity, or Allah as the creator of the universe, the Vedantic idea of the 'Self' is unique to it. The speaker further distinguishes between these concepts by defining 'soul' and 'spirit' as concepts or beliefs held by the mind. In contrast, Atma is the very truth of one's existence, that which remains after the mind and ego have dissolved. He clarifies that the term 'Jivatma' (individual soul), which appears in some Indian philosophies like Mimamsa, can be equated to the concept of 'soul', but this is fundamentally different from the Atma of Vedanta. The Atma of Vedanta is one with Brahman, the ultimate reality. Understanding the distinction between the soul (a mental construct) and the Self (the ultimate truth) is the essence of the spiritual journey. To be unaware of the Self is to be driven by the ego, which is the root of all suffering. A person operates from one of two centers: the ego, which is falsehood, or the truth, which is Atma. The Upanishads are profoundly important because their primary subject is the Atma; their purpose is to guide one in cleansing the ego to realize the Self. Acharya Prashant notes that there is often a significant difference between the prevalent practices of Hinduism and the core teachings of Vedanta. He quotes Swami Vivekananda, who envisioned Vedanta as the future world religion. This is not to say that popular Hinduism would become the world religion, but that the universal truth of the Self, as taught by Vedanta, holds a special key to understanding that is not found elsewhere. This concept of Self offers a dimension beyond the duality of creator and creation, and understanding it is what makes life meaningful.