OM: Mystical Word or Empty Syllable? (96)

Why is the word “OM” considered so sacred and powerful? How many religions recognize it as a spiritually potent word? What association does it have with three of the most revered gods of the Hindu pantheon: Brahma, Vishnu, and Shiva? Does it have any connection with John 1:1 as some gurus propose? www.thetruelight.net