Upanishads are a profound record of the deepest spiritual experiences of the Rishis who by the power of their tapas could attain to higher… — Upanishads are a profound record of the deepest spiritual experiences of the Rishis who by the power of their tapas could attain to higher realms of consciousness and realise many aspects of the Supreme Truth. Sri Aurobindo, the Rishi of India’s Renaissance, observed that the Upanishads are “…documents of revelatory…