Frits Staal, Professor Emeritus, UC Berkeley in Mantras and Bird Songs
This applies equally to apparently “meaningless” mantras such as om or hum phat and to apparently “meaningful” mantras such as namo buddhaiya or sivaya namah.
We may formulate this conclusion in slightly different terms by distinguishing between apparently meaningless mantras such as om and apparently meaningful mantras such as sivaya namah.
Resul Pookutty , Oscar winner for Sound Mixing
I come from a country and a civilization that has given the universal word. That word is preceded by silence, followed by more silence. That word is “Om.”