Taittiriya Upanishad and Commentary

The Taittiriya Upanishad is associated with the Taittiriya school of the Yajurveda attributed to the pupils of sage Vaishampayana. It lists as number 7 in the Muktika canon of 108 Upanishads. The Taittiriya Upanishad is the seventh eighth and ninth chapters of Taittiriya Araṇyaka which are also called respectively the Siksavalli the Anandavalli and the Bhṛguvalli. This Upanishad is classified as part of the black Yajurveda with the term black implying the un-arranged motley collection of verses in Yajurveda in contrast to the white (well arranged) Yajurveda.