The utterance of the word " Aum" creates a psychic protection around the individual who utters it. I have read, basically we have an energy circuit running in our system, whenever this circuit is incomplete, lot of things from outside can enter, possessions, lot of thoughts that are totally useless to us( thoughts tend to fly around, transmit from person to person) and negative vibes etcetera tend to enter our system. And we think them as ours, identify with them, and carry them to the grave with us. The utterance of the sound " Aum" completes the energy circuit and harmonizes the system as it supposedly is the universal sound, I have heard everything began with the sound "Aum".How to do it:-
Basically keep repeating the sound " Aum" for a certain period of time. Begin with 15 minutes.
When you repeat, listen to yourself uttering the sound, each syllable " Aaa uuuu mmmmm" .
If you do not listen to it while uttering, you will fall into a hypnotic state, where you get hypnotised by the sound, not a bad state, but this is sleep basically, it does not create awareness.
If you listen to the sound while repeating them, it creates awareness inside you, the light within! It will literally lit up a candle inside you basically that watches everything coming and going.
Begin with 15 minutes first. And you can stretch it upto an hour.
Do it every single day for 3 months.
And I repeat miracles will happen. I have been doing it for a month now, and my illnesses improved and fears disappeared.
Sit in cross-legged posture while doing it, or make yourself comfortable and take support, but your spine must be straight.