The Isa Upanishad is the last part of the Sukla Yajur Veda, given to us by Yajnavalkya, received by him from Surya Deva. It is said that Surya was in the form of an Asva (or horse), when he delivered this wisdom. The sun and the horse are always seen in the Ancient Indian Philosophical context as associated with illumination and learning.

Jagdguru Sri Krishna summarised the essence of all the Upanishads in the Bhagavad Gita. Lokasankara, Sri Adi Sankaracharya has written a commentary on the Upanishads. It is in the light of Sankara's commentary and Krishna's Bhagavad Gita that we attempt to understand the Isa Upanishad.

This book presents the Isa Upanishad in mantra, meaning, discussion form, with a conclusion that summarises the entire upanishad in the light of my understanding.

This book is a useful guide to spiritual aspirant or to a student of Indian Philosophy or to someone who just wants to know what the Isa Upanishad says.