This essay explores the Advaita Vedānta understanding of consciousness as the one non-dual reality underlying all existence. Through logical inquiry, analysis of the waking, dream, and deep sleep states, and reflection on the nature of the subject and object, it demonstrates that consciousness is not produced by the body or mind but is the eternal witness that illumines all experiences. The essay presents consciousness as limitless, self-existent, and identical with Brahman — the infinite reality described in the Upanishads.
Drawing upon the teachings of the Upanishads and Ādi Śaṅkarācārya, the essay also addresses modern philosophical and scientific theories about consciousness, including materialism, emergence, and artificial intelligence, from the standpoint of Advaita. It concludes that the recognition of one’s true nature as consciousness dissolves fear, limitation, and separation, leading to freedom, compassion, inner peace, and a deeper understanding of existence itself.
