From the point of view of a mystic, yellow is the color of the earth, green or white the color of the water element, red that of the fire element, and blue of the air element. If asked what the color of the ether element is the mystic would answer grey, became by grey one may think of anything one likes. It is most interesting for a student of color to see that all colors are, so to speak, different shades of light; it shows that light itself has manifested in variety, in the form of many colors.