Over the expanse of the water passes the endless uniform wave-train of the generations. Here and there bright shafts of light broaden out, everywhere dancing flashes confuse and disturb the clear mirror, changing, sparkling, vanishing. These are what we call the clans, tribes, peoples, races which unify a series of generations within this or that limited area of the historical surface. As widely as these differ in creative power, so widely do the images that they create vary in duration and plasticity, and when the creative power dies out, the physiognomic, linguistic and spiritual identification-marks vanish also and the phenomenon subsides again into the ruck of the generations. Aryans, Mongols, Germans, Kelts, Parthians, Franks, Carthaginians, Berbers, Bantus are names by which we specify some very heterogeneous images of this order. But over this surface, too, the great Cultures[86] accomplish their majestic wave-cycles. They appear suddenly, swell in splendid lines, flatten again and vanish, and the face of the waters is once more a sleeping waste. A Culture is born in the moment when a great soul awakens out of the proto-spirituality (_dem urseelenhaften Zustande_) of ever-childish humanity, and detaches itself, a form from the formless, a bounded and mortal thing from the boundless and enduring. It blooms on the soil of an exactly-definable landscape, to which plant-wise it remains bound. It dies when this soul has actualized the full sum of its possibilities in the shape of peoples, languages, dogmas, arts, states, sciences, and reverts into the proto-soul. But its living existence, that sequence of great epochs which define and display the stages of fulfilment, is an inner passionate struggle to maintain the Idea against the powers of Chaos without and the unconscious muttering deep-down within. It is not only the artist who struggles against the resistance of the material and the stifling of the idea within him. Every Culture stands in a deeply- symbolical, almost in a mystical, relation to the Extended, the space, in which and through which it strives to actualize itself. The aim once attained—the idea, the entire content of inner possibilities, fulfilled and made externally actual—the Culture suddenly hardens, it mortifies, its blood congeals, its force breaks down, and it becomes _Civilization_, the thing which we feel and understand in the words Egypticism, Byzantinism, Mandarinism. As such they may, like a worn-out giant of the primeval forest, thrust their decaying branches towards the sky for hundreds or thousands of years, as we see in China, in India, in the Islamic world. It was thus that the Classical Civilization rose gigantic, in the Imperial age, with a false semblance of youth and strength and fullness, and robbed the young Arabian Culture of the East of light and air.[87]