All this is the result of the atrophy of that faculty to worship and wonder which alone induces the mood from which the creation of beauty springs. Light we regard only as a convenience "to see things by" instead of as the power and glory that it inherently is. Its intense and potent vibrations and the rainbow glory of its colour beat at the door of consciousness in vain. When we awaken to these things we shall organize light into a language of spontaneous emotion, just as from sound music was organized. It is beside the purpose of this essay to attempt to trace the evolution of this new art form, made possible by modern invention, to indicate what phases it is likely to pass through on the way to what perfections, but that it is bound to add a new glory to architecture is sure. This will come about in two ways: directly, by giving color, quality, subtlety to outdoor and indoor lighting, and indirectly by educating the eye to color values, as the ear has been educated by music; thus creating a need for more color everywhere. As light is the visible symbol of an inner radiance, so is color the sign manual of happiness, of joy. Our cities are so dun and drab in their outward aspects, by reason of the weight of care that burdens us down. We decry the happy irresponsibility of the savage, and the patient contentment of the Oriental with his lot, but both are able to achieve marvels of color in their environment beyond the compass of civilized man. The glory of mediaeval cathedral windows is a still living confutation of the belief that in those far-off times the human heart was sad. Architecture is the index of the inner life of those who produced it, and whenever it is colorful that inner life contains an inner joy. In the coming Golden Age life will be joyous, and if it is joyous, colour will come into architecture again. Our psychological state even now, alone prevents it, for we are rich in materials and methods to make such polychromy possible. In an article in a recent number of _The Architectural Record_, Mr. Leon V. Solon, writing from an entirely different point of view, divines this tendency, and expresses the opinion that color is again renascent. This tendency is so marked, and this opinion is so shared that we may look with confidence toward a color-evolution in architectural art. The question of the character of what may be called the ornamental mode of the architecture of the New Age is of all questions the most obscure. Evolution along the lines of the already existent does not help us here, for we are utterly without any ornamental mode from which a new and better might conceivably evolve. Nothing so betrays the spiritual bankruptcy of the end of the Iron Age as this.