Summary: In Indian philosophy, the emergence of idealism is traced back to the Upanishads, where the concept of Brahman as the ultimate reality is emphasized. The Mundaka Upanishad delves into the creation of the world as a natural emanation from Brahman, pointing towards a dynamic absolutism. The Taittirlya Upanishad highlights Brahman as the source of pure bliss, challenging the traditional theistic views of creation. Buddhist idealism, on the other hand, denies the existence of a permanent self and emphasizes the impermanence of all things. The concept of Alayavijfiana in Buddhism serves as the basis for all experienced phenomena, suggesting a realm of pure consciousness beyond all experiences. These philosophical perspectives question the nature of reality, perception, and the self, challenging entrenched beliefs and paving the way for new interpretations of the ultimate truth.