And what is color? Color also is movement. And its capacity makes color concrete to our vision. At the same time, although we may say that this is green or red or yellow, every color is different to each person; in fine shades of color, people do not see alike, because the capacity is different in each. The tone is according to the capacity. In other words, it is not the tone or color which in its value is different; it becomes different when we sense it, when we feel it. In its relation to us it is different.