A world of contrasts lies between the powerful opposites among all the colors we can see.  In the space between those beautiful extremes, between the flame of orange and the deep sea of indigo, between scarlet and emerald, is where we can begin to take the measure of our understanding of the visible world. And in the knowing, we can rejoice in the wideness of the visible world that resides between late-night violet and the dazzling yellow of daffodil petals newly sprung, between scarlet and emerald.