Sound nil silence peace of in your mind as same as in space. But In that silence try to ear `om’ does sound with your tong (do it from your mouth). `Om’ is most powerful mantra.

All our mantras begin with `om’ and end with namah. That is the tradition in Sanskrit. `Om’ is supposed to be the origin of creation. It is said that the whole creation came out from pranava `om’ sound.

The sound `om’ in pranava travels in to the depths of our heart and slowly merges therein, retaining its reflection in our memory. It will bore memory. It will be bore each one of the subtle bodies and reach sahasrara. When `om’ is uttered out side, it vibrates and slowly recedes in to silence. When it is turned inside, it becomes soundless and salient. It goes on further boring the silence and reaches the origin. When our heart center anahata becomes completely vacant, it begins to produce subtle vibrations. The `jhum’ sound becomes `ovum’. That resembles air wave sound. If we follow that sound, we reach the heart’s silent core, where such sounds resound from nowhere. That is the sound of silence.

The pranava sound stars from the silence of anahata center and goes to the head center sahasrara. The disciples who mediate on the anahata center could hear the resounds and enjoy the ecstasy of pranava, the sound of silence.

So long as we pronounce ` Om’ with our lips, we cannot transcend the outer, physical consciousness. We cannot jump in to silence. We will be observing the stream waters standing on the banks. We remain as spectators. We don’t become participants. We can’t cross the anahata level. There we must jump in to silence with no hesitation. We should dive in to ecstasy of silence.