What ‘A-U-M’ is

I think When a child take birth the first thing he or she do is the sound of aum root of life. human child can have weep sound with out speaking. and he or she do at the time of birth. also if he or she doesn't make sound it is predict something is different. so i think when life occurs there is a sound of aum. and it affects us in every part of life. why it effect and what its exact meaning? i think a lot of search should be done in this.

The great universe is on motion from the birth and there is a Hum, like a motor in motion, which is produced from its basic frequency  – is ‘A-U-M’ 

Thank you for opening the another side of 'OM'

It  is true in the spiritual point of view

good one

The sound Aum or Om is made up of three Sanskrit letters aa, au and ma. 

The general belief is that the Om is the basic sound of the Universe and contains all other sounds.

A sound is a frequency and the universe is basically consistent of frequencies. If this sound repeated with correct intonation, it can resonate throughout the body and thus penetrating the soul or the centre of one’s being.

In meditation, the chanting of Om creates a vibration that attunes sympathy with the cosmic vibration. The sign used to represent the Om is called “omkar” and it contains three curves, one semicircle and a dot. These are meant to symbolize the states of human awareness. The waking state is symbolized by the large lower curve, the deep sleep state is represented by the upper curve and the dream state is symbolized by the lower curve that lies between the deep sleep and the awakening state.

Good topic and good picture