Blue is the colour of heavenly consciousness, truth, harmony, calmness and hope. Sky blue clothing worn by women can bring out the gentle protective nature in the men. Whereas red excites the passions, blue soothes and quietens them. The softer hues of blue can sedate the nerves. Blue is a quieting colour and is used in the rooms of violent criminals and mentally disturbed patients. Blue clothing provides the greatest protection against the sun rays in the tropics. In its negative aspects too much blue can be depressing, bringing on a "feeling of the blues" in otherwise healthy people. Blue and green together can stimulate the highest level of talent and creativity in arts and music. Known to produce a calming effect, a deep and strong sky blue colour (known in medical term as Cardiac Blue) is the most tranquillizing colour of all. When it is in a person's field of vision, it causes the brain to secrete eleven neurotransmitters that tranquilize. These hormones bring calmness to the whole body. They also slow down the pulse rate, deepen the breathing, reduce perspiration and lower body temperature. Also eliminate the flight or fight response and reduce appetite. (Have you wondered why very few blue food exists in nature?)

Under the influence of Blue, you are deliberate and introspective. You have conservative convictions and retreat to gentler surroundings in times of stress, but are sensitive to the feelings of others. You keep a tight rein on your passions and enthusiasms, are a loyal friend and lead a sober life. You nourish preposterous dreams but do not act on them. Stupidity in others annoys you, as does superior intelligence.

We refuse to eat blue tinted foods. We have a natural aversion to eating something blue. Weight loss programmes are more successful when foods are eaten while looking at blue colored walls or decoration.

Blue vibratory rays increase the metabolism, build vitality promote growth, slow down the action of heart and act as a tonic on the body. They have antiseptic properties, and a soothing or cooling effect on inflammation.

Blue is the balancing and harmonising colour that regulates the blood stream to normal. It reduces nervous excitement. It relaxes the mind. It helps the introvert come out of his shell and comfort the maniac depressiveness. But after ten minutes of concentrated treatment with blue rays, mental depression tends to set in. So don't overdo it! However blue clothings and furnishings sometimes make a person tired.

Blue is the colour of truth, devotion, calmness, sincerity, intuition and higher mental faculties.

Indigo is a color between blue and violet in its highest positive vibrations. It combines reason with intuition and discipline with creativity. It represents both the creative and destructive forces in a person's nature. It also represents the metabolic process in man (catabolism and anabolism) and the divine law of change and growth. In its negative aspect, indigo stands for stagnation, mental fatigue and starving without success. But it also represents the "breakthrough point" where old failures transmute into new successes, frustrated mental strivings break through to higher consciousness and problems turn into stepping stones to wonderful solutions. Indigo represents the healing crisis of natural art where old toxins and waste are cast out of the body to make room for new tissue. Indigo is a Soothing and cooling astrigent. It is a parathyroid stimulant and thyroid depressant - a blood purifier. As a phagocyte builder and hemostatic agent. It reduces or stops excessive bleeding and tones the muscles and lungs.

Indigo rays control the psychic currents of the subtle spiritual bodies. They also control the forehead chakra and influence vision, hearing and smell on the physical, emotional and spiritual planes.