Om Sah Navavatu Sah Nau Bhunaktu Sah Veeryam Karvaavahai Tejasvinavdheetamastu Ma Vidvishavahai. The Art of Teaching

The DVDs and Book can be purchased from https://store.artofliving.org/in/search.aspx?q=kena&T=0&C=ALL

This mahavaakya is a state of realization that the the self is all. I’d like to add from the Mundaka Upanishad which says that everyone is a part of my self in a different form.

The mystic sound Aum is explained in detail in the Mandukya Upanishad. Sanskrit text...

Probably the shortest among all Upanishads, and amongst the most important - Ishavaso-Upanishad. Complete Sanskrit text :-)