Is one of the 22 Samanya (general) Upanishads of Hinduism. The text, along with the Niralamba Upanishad, is one of two dedicated glossaries embedded inside the collection of ancient and medieval era 108 Upanishads. The text exists in two versions, one attached to the Atharvaveda in many Sanskrit anthologies, and another attached to the Krishna Yajurveda in some anthologies such as the Telugu language version. The two versions have some differences, but are essentially similar in meaning. The Sarvasara Upanishad is written in the style of glossary of Vedanta terms. The text begins by listing twenty three questions, such as what is Moksha, what is Avidya and what is Vidya? It then follows with twenty three answers. The manuscript version of the Sarvasara Upanishad in Atharvaveda discuss the last two questions differently than the manuscript of the same text attached to the Krishna Yajurveda. The glossary in Sarvasara Upanishad in collections where it attached to Atharvaveda, covers the following twenty three words: Bandha (bondage), Moksha (liberation), Avidya (incorrect knowledge), Vidya (correct knowledge), Jagrat (waking consciousness), Swapna (dream sleep consciousness), Sushupti (dreamless deep sleep consciousness), Turiyam (fourth stage of consciousness), Annamaya, Pranamaya, Manomaya, Vijnanamaya, Anandamaya, Kartar, Jiva, Kshetrajna, Saksin, Kutastha, Antaryamin, Pratyagatman, Paramatman, Atman and Maya.