A kind of mysterious veil hangs over the manner in which spiritual needs were satisfied during the older civilisations by those who sought a deeper religious life and fuller knowledge than the popular religions offered. If we inquire how these needs were satisfied, we find ourselves led into the dim twilight of the mysteries, and the individual seeking them disappears for a time from our observation. We see how it is that the popular religions cannot give him what his heart desires. He acknowledges the existence of the gods, but knows that the ordinary ideas about them do not solve the great problems of existence. He seeks a wisdom which is jealously guarded by a community of priest-sages. His aspiring soul seeks a refuge in this community. If he is found by the sages to be sufficiently prepared, he is led up by them, step by step, to higher knowledge, in places hidden from the eyes of outward observers. What then happens to him is concealed from the uninitiated. He seems for a time to be entirely removed from earthly life and to be transported into a hidden world. When he reappears in the light of day a different, quite transformed person is before us. We see a man who cannot find words sublime enough to express the momentous experience through which he has passed. Not merely metaphorically but in a most real sense does he seem to have gone through the gate of death and to have awakened to a new and higher life. He is, moreover, quite certain that no one who has not had a similar experience can understand his words. This was what happened to those who were initiated into the Mysteries, into that secret wisdom withheld from the people and which threw light on the greatest questions. This "secret" religion of the elect existed side by side with the popular religion. Its origin vanishes, as far as history is concerned, into the obscurity in which the origin of nations is lost. We find this secret religion everywhere amongst the ancients as far as we know anything concerning them; and we hear their sages speak of the Mysteries with the greatest reverence. What was it that was concealed in them? And what did they unveil to the initiate? The enigma becomes still more puzzling when we discover that the ancients looked upon the Mysteries as something dangerous. The way leading to the secrets of existence passed through a world of terrors, and woe to him who tried to gain them unworthily. There was no greater crime than the "betrayal" of secrets to the uninitiated. The "traitor" was punished with death and the confiscation of his property. We know that the poet AEschylus was accused of having reproduced on the stage something from the Mysteries. He was only able to escape death by fleeing to the altar of Dionysos and by legally proving that he had never been initiated.