What is om mean
The scriptures tell us that "OM" is the planets primordial vibration from which the entire universe has arisen. All other sounds are contained within it.
It is believed that "OM" is the mother of all languages. Repetition of "OM" enables us to maintain mental and emotional calmness, overcome obstacles and enable understanding.
An analysis of "OM" as it is written in Sanskrit shows that it is made up of A, U, M and a symbol representing resonance. So "OM" has four aspects.
The first is A, a sound that comes from the belly, is formed in the open throat, and is voiced with the mouth open. As with many alphabets, A is the first letter of the Sanskrit alphabet.