Om is the most sacred mantra in major Indic religions such as Hinduism, Buddhism and Jainism. It symbolizes affirmation, benediction and peace, and is used ritualistically in Prayers, invocations and ceremonies symbol beyond compare and is regarded as a vehicle of attainting liberation (moksha). Not only this at the highest level it is identified Reality.

Using the Vedas Upanishads Yoga Tantra and several religious texts as his sources the author describes a plethora of interpretations of this immemorial captivated its worshippers put yogic into trance made Tantra practitioners ecstatic and sent its chanters into religious frenzy.

The author also explains secular interpretations of Om in linguists, psychology and structural analysis.