After the fall of the republic indifference spread, the temples were abandoned and threatened to tumble into ruins, the clergy found it difficult to recruit members, the festivities, once so popular, fell into desuetude, and
Varro, at the beginning of his Antiquities, expressed his fear lest "the gods might perish, not from the blows of foreign enemies, but from very neglect on the part of the citizens."[[21]] It is well known that Augustus, prompted by political rather than by religious reasons, attempted to revive the dying religion. His religious reforms stood in close relation to his moral legislation and the establishment of the imperial dignity. Their tendency was to bring the people back to the pious practice of ancient virtues but also to chain them to the new political order. The alliance of throne and altar in Europe dates from that time.
This attempted reform failed entirely. Making religion an auxiliary to moral policing is not a means of establishing its empire over souls. Formal reverence for the official gods is not incompatible with absolute and practical skepticism. The restoration attempted by Augustus is nevertheless very characteristic because it is so consistent with the Roman spirit which by temperament and tradition demanded that religion should support morality and the state.
The Asiatic religions fulfilled the requirements. The change of régime, although unwelcome, brought about a change of religion. The increasing tendency of Cæsarism toward absolute monarchy made it lean more and more upon the Oriental clergy. True to the traditions of the Achemenides and the Pharaohs, those priests preached doctrines tending to elevate the sovereign above humanity, and they supplied the emperors with dogmatic justification for their despotism.[[22]]
It is a noteworthy fact that the rulers who most loudly proclaimed their autocratic pretentions, like
Domitian and Commodus, were also those that favored foreign creeds most openly.
But his selfish support merely sanctioned a power already established. The propaganda of the Oriental religions was originally democratic and sometimes even revolutionary like the Isis worship. Step by step they advanced, always reaching higher social classes and appealing to popular conscience rather than to the zeal of functionaries.
As a matter of fact all these religions, except that of Mithra, seem at first sight to be far less austere than the Roman creed. We shall have occasion to note that they contained coarse and immodest fables and atrocious or vile rites. The Egyptian gods were expelled from Rome by Augustus and Tiberius on the charge of being immoral, but they were called immoral principally because they opposed a certain conception of the social order. They gave little attention to the public interest but attached considerable importance to the inner life and consequently to the value of the individual. Two new things, in particular, were brought to Italy by the Oriental priests: mysterious methods of purification, by which they claimed to wash away the impurities of the soul, and the assurance that a blessed immortality would be the reward of piety.[[23]]
These religions pretended to restore lost purity[[24]] to the soul either through the performance of ritual ceremonies or through mortifications and penance. They had a series of ablutions and lustrations supposed to restore original innocence to the mystic. He had to wash himself in the sacred water according to certain prescribed forms. This was really a magic rite, because bodily purity acted sympathetically upon the soul, or
else it was a real spiritual disinfection with the water driving out the evil spirits that had caused pollution. The votary, again, might drink or besprinkle himself with the blood of a slaughtered victim or of the priests themselves, in which case the prevailing idea was that the liquid circulating in the veins was a vivifying principle capable of imparting a new existence.[[25]] These and similar rites[[26]] used in the mysteries were supposed to regenerate the initiated person and to restore him to an immaculate and incorruptible life.[[27]]