According to physics, everything exists because of vibration. There are many kinds of sounds – we like some sounds but others we don’t. Such as if somebody is weeping, we never feel good. If somebody is laughing, definitely we feel good. We can hurt anybody by sound. We can make them pleased also. Sound has a big importance in our life. This world came out from a vibration. In the Bible it is written, “In the beginning was the Word, and the Word was God.”* It is a reference to the sound AUM (or OM).
AUM is a Nad (an internal sound) which comes from inside. Nobody is creating it. This is not related with any religion. This sound is present in every human being. OM is a symbol of Brahma, Vishnu, Mahesh. The individual sounds are highly symbolic in Sanskrit. This is a meaning of God: G-O-D – G for Generator, O for operator, and D for destroyer. Everything that is born has a life and one day has to die also. This is the energy of Creation, Operation, Dissolution. It is an energy and represents everything – it is a vibration.
We should never chant AUM in a careless or mechanical way. We should always have reverence and respect in repeating this mantra. Then one day we will understand better that with the sound AUM we are thinking for GOD: Generator, Operator, Destroyer; not only one aspect of God. We use the sound OM also internally in meditation for purification. It gives us stability and stillness of mind and helps us to overcome the obstacles in yoga.
In the Upanishads we also say that the letter ‘A’ is a symbol of the waking state, ‘U’ of the dream state and ‘M’ of dreamless sleep. The fourth sound is a resonance which carries on and this represents the state of Samadhi. In the same way AUM represents the One who is present in all of these states whilst being beyond them, the One who is fully awakened, the One who knows everything and is everywhere.
When a practitioner of meditation hears this sound inside, then they are automatically becoming very quiet and peaceful.
*St John 1:1 The full verse reads, “In the beginning was the Word, and the Word was with God, and the Word was God.”