A holy and divine sound, Om which is universally represented, worshipped and symbolized as the letter Om.
It should be said
before and after reading the Vedas (the earliest Hindu religious books), making
any prayer, or performing any holy ceremony, according to Hindu tradition.
It is said to eliminate impediments when spoken at the start
of a ritual, and it is said to be a finishing affirmation when said at the
conclusion.
The sound Om is considered as the core of all sacred
discourse due to its widespread ceremonial usage.
The sound's phonetic constituents (A, U, and M) were
regarded as referring to different states of awareness as early as the Mandukya
Upanishad, ultimately signifying the Self (atman).
In addition, there are four different states of awareness to
consider.