the subtle biomagnetic sheath or electro-magnetic field that surrounds the physical body, providing a protective zone that extends for about eighteen inches to three feet from the body and contains information about a person's physical, mental, emotional and spiritual state of being.  The electro-magnetic field alters in radiance, and color depending upon the state of physical, emotional and spiritual health.  The energy field comes from the Greek avra, meaning "breeze".  The intuitive eye can see dis-ease in the aura.