Shandilya Upanishad, also termed as Sandilyopanishad, is found attached to Atharva Veda. This Upanishad is given as the answer to questions of Rishi Sandilya as a seeker, hence named as such. It is the 58thUpanishad of 108 Upanishads of Muktika Upanishad order and one of the 20 Yoga Upanishads.

Rishi Shandilya, the son of Rishi Devala and the grandson of Rishi Kashyap, is one of the greatest rishis of the Vedic Era.

Rishi Shandilya was the disciple of Rishi Adhidanvaan Saunaka who taught him the nature of Brahman.

TC: Classicyoga