This paper delves into the intricate psychological and philosophical model of the human mind as presented in Indian thought, focusing on the fourfold division of Manas (sensory mind), Chitta (storehouse of impressions), Buddhi (intellect), and Ahamkara (ego or self-sense). Rooted in classical texts such as the Upanishads, Bhagavad Gita, Yoga Sutras, and Samkhya Karika, this framework offers a holistic understanding of mental functioning that extends beyond the materialist paradigm. By analyzing the roles and interrelations of these components, the study highlights how ancient Indian traditions conceptualized consciousness, identity, and cognition. Furthermore, the paper explores the contemporary relevance of this model in light of modern psychology and neuroscience, arguing for its value in therapeutic, cognitive, and spiritual contexts. This interdisciplinary approach not only bridges ancient wisdom and modern science but also contributes to a deeper understanding of the human experience.