Brihadaranyaka Upanishad
The Brihadaranyaka Upanishad (Sanskrit: बृहदारण्यकोपनिषद्, IAST: Bṛhadāraṇyak Upaniṣad) is one of the Principal Upanishads and one of the first Upanishadic scriptures of Hinduism. A key scripture to various schools of Hinduism, the Brihadaranyaka Upanishad is tenth in the Muktikā or "canon of 108 Upanishads".