In architecture the same phenomena appear, only differently clothed. Though the Germans, who swarmed across the Danube, often surged against the walls of Constantinople, they never became the ruling class of the community, because they were of the imaginative type. Money retained its supremacy, and while it did so energy expressed itself through the economic mind. Though Justinian was of barbarian blood, the nephew of a barbarian shepherd, the aristocracy about him, which formed the core of society, was neither imaginative nor devotional. Hardly Christian, it tended toward paganism or scepticism. The artists were of the subject caste, and they earned their living by gratifying the tastes of the nobles; but the nobles loved magnificence and gorgeous functions; hence all Byzantine architecture favoured display, and nowhere more so than in Saint Sophia. “Art delighted in representing Christ in all the splendour of power.... To glorify him the more all the magnificence of the imperial court was introduced into heaven.... Christ no longer appeared under the benevolent aspect of the good shepherd, but in the superb guise of an oriental monarch: he is seated on a throne glittering with gold and precious stones.”[79] Here then lay the impassable gulf between Byzantium and Paris; while Byzantium remained economic and materialistic, Paris passed into the glory of an imaginative age. The Germans who overran the Roman territory were of the same race as the Greeks, the Latins, or the Gauls, but in a different stage of development. They tilled farms and built villages and perhaps fortresses, but they were not consolidated, and had neither nations nor federations. They were substantially in the condition in which the common family had been, when it divided many centuries before, and their minds differed radically from the minds of the inhabitants of the countries beyond the Danube and the Rhine. They were infinitely more imaginative, and, as the flood of emigration poured down from the north, the imagination came more and more to prevail. Although the lowest of existing savages are relatively advanced, they suggest that the strongest passion of primeval man must have been fear; and fear, not so much of living things, as of nature, which seemed to him resolutely hostile. Against wild beasts, or savages like himself, he might prevail by cunning or by strength; but against drought and famine, pestilence and earthquake, he was helpless, and he regarded these scourges as malevolent beings, made like himself, only more formidable. His first and most pressing task was to mollify them, and above the warrior class rose the sacred caste, whose function was to mediate between the visible and the invisible world.