This work is considered to be, the Brihadaranyaka Upanishad, one of the older Upanisads, associated with the White Yajurveda. It is in the tenth place on the list of the 108 Upanisads the Muktita canon. In this important upanisad we find the most powerful wisdom advaita from the negation of "neti, neti", "not this, nor that", which is in essence observation.

The name of this Upanisad it translated as "The great book of the forest" and is made—up of three sections called: Madhu Kanda, Muni Kanda or Yajnavalkya Kanda and Khila Kanda. In the first part or Madhu Kanda we find teachings about the identity of Atman, in the second section or Muni Kanda there are incorporated conversations between the great sage Yajnavalkya and Maitreyi, his wife, finally in the last segment or Khila Kanda we find various meditations as well as methods and forms of adoration.

Yogāchārya Bhaktivedanta Ramakrishnananda Swami Maharaja