Om is the prime mantra of the Higher Self. It is the sound of the creator, preserver, and destroyer of the universe. It manifests consciousness in all worlds and all creatures.
"Om or Aum of the Vedas became the sacred word Hum of the Tibetans, and Amen (آمين) of the Egyptians, Greeks, Romans, Jews, Christians, and Muslims"
The syllable has been translated into many different languages, cultures, and religious traditions, but the creative and transformative power of the sound remains the same.