Here is a picture of the human bio-energy field after meditation taken using Kirilan photography. The human Aura is an energy field of 7 layers that surrounds and goes through the physical body in an egg shape or bubble of spiritual light, colour, sound, feelings and Life Energy.
Meditation brings the 7 energy systems, or chakras, into harmony allowing for emotional, physical, and spiritual coherence which translates into a natural flow of energy through the body.
''A condition of health exists when each chemical in the physical body has the etheric chemical counterpart in the etheric body at the appropriate concentrations.'' - Dr. William Tiller, Stanford University