According to Indian spiritual sciences, God first created sound.  From these sound frequencies came the 
entire universe.  Our existence, indeed the entire universe,  is made from these primal sounds. OM is 
said to be the most sacred of all sounds. It is the syllable which preceded the universe and from which 
the gods were created. It is the "root" syllable (mula mantra), the cosmic vibration that holds together 
the atoms of the world and heavens. The Upanishads say that AUM is God in the form of sound.  Visually, Om 
is represented by a stylized pictograph.