Have a read of this article Understanding the significance of OM
All we are is breath….? Really all we are is breath!! The air that we breathe is a subtle element nonetheless it is something, we can feel it when the wind blows on our skin, we can see it fill up a vessel like a balloon or similar and we can certainly feel it when we fill up the chambers of our lungs. If you are more open in your energy bodies you may feel it, well… everywhere in your body and beyond your body. Expansion through the breath can allow you to experience the very fabric of existence. The physical mass of our body has been built really on.