The cause of disease according to the science of Chromopathy is the want of certain color in the human system. Whatever complications may arise the cause remains the same and the complications are due to this want affecting the different parts of the body. On a broad principle, there are two principal colors, the red and the blue, yellow representing the middle point between both. These are the three principal colors of rainbow. Thus we are repuired to knwo which color is wanting in a certain body and how to make up that color to remove the disease.