https://mnhopkins.blogspot.com/2023/10/behold-you-glory-and-grieve-no-more.html
The Mundaka Upanishad is an ancient Sanskrit Vedic text, embedded inside Atharva Veda. It is a Mukhya Upanishad, and is listed as number 5 in the Muktika canon of 108 Upanishads of Hinduism. It is among the most widely translated Upanishads.