Upanishads are the ancient treatises on spiritual truths as envisioned by the seers, sages, and rishis of the civilization of India. This volume is a collection of Sri Aurobindos final translations of and commentaries on every Upanishad or other Vedantic text he worked on. nThe Upanishads is a collection of Sri Aurobindos final translations of and commentaries on every Upanishad or other Vedantic text he worked on. Upanishads are the ancient treatises on spiritual truths as envisioned by the seers, sages and rishis of the civilization of India. Index.