The syllable ‘AUM’ is the aggregation of sound, whenever, wherever and in whichever form it prevailed or prevails. Almost all major religions in India, Jainism, Buddhism, Sikhism among others have adopted ‘AUM’ as a sacred expression, as a symbol of Hinduism it has universal acceptance. The tendency to rise from a level and fall is the sound’s essence. It manifests best in ‘AUM’. When pronounced rightly, it rises to palate, then to brain and then beyond it, and then descends. On its lowest pitch ‘AUM’ is soundlessness, and on its highest, it is the sound that the space shall not contain. The Mandukya-Upanishad claims that the sound of ‘AUM’ includes all that has happened and all that is yet to happen.