Today psychologists and scientists have discovered that colour is the most important of the environmental factors which affect the conscious, sub-conscious and unconscious minds of a person. Colour profoundly affects our entire personality.
Alexander Schauss, Director of the American Institute of Bio-social Research, believes that electro-magnetic energy of colour interacts in some still unknown way with the pituitary and pineal glands and the hypothalamus, deep in the brain. These organs regulate the endocrine system which controls many basic body-functions and emotional responses such as aggression, fear etc.
Minute amounts of electro-magnetic energy from light affect one or more of the neuro-transmitters - chemical messengers that carry messages from nerve to nerve and from nerve to muscle. Experiments have also provided evidence that light striking the retina influences the pineal gland's synthesis of melatonin, a hormone that has been found to help determine the body's output of serotonin, a neurotransmitter.
Every object in this world, whether it is animate or inanimate, radiates energy in all directions and in the same shape as itself. These radiations are waves of electro-magnetic energy and they constitute the 'aura'. Nothing in this world exists which does not radiate energy.
Scientists, doctors and yoga-philosophers - all agree that aura does really exist and depicts a true picture of physical, mental and emotional states of an individual.