The Word OM is a sacred sound and a spiritual icon. The syllable OM has got an intense hidden meaning.It has got mythological past since it is derived from Vedas and Upanishads. In ancient days many sages and monks used to live longer against typical weather conditions without food.It was only possible with meditation and chanting the sacred sound OM. Many of us might think it is only religious. The fact which we don't know is, even science has proved that chanting OM has got many therapeutic, psychological benefits.