Very different conditions existed in those parts of Southern Europe and western Asia where the fourth epoch of post-Atlantean civilization was unfolded. In occult science, it is called the Greco-Roman period. Descendants of peoples inhabiting widely distant parts of the older world had met together in these countries. Here were oracle-sanctuaries which conformed to the various Atlantean oracles; here were people with the heritage of ancient clairvoyance as a natural gift, and others who were able to acquire it, with comparative ease, by training. The traditions of the ancient Initiates were not only preserved in special places, but worthy successors to them arose, who attracted disciples capable of rising to lofty levels of spiritual vision. Moreover, these races had within them the impulse to create a domain within the sense-world which expresses the spiritual in perfect form through the physical. Greek art is, among other things, a result of this impulse. It is only necessary to gaze with the eye of the spirit upon a Greek temple, in order to see that in this marvel of art, material substance is so worked upon by man that it appears in every detail as the expression of spirit. The Greek temple is the “House of the Spirit.” One sees in its form what otherwise only The Spiritual eye of the seer perceives. The temple of Zeus-(or Jupiter) is so constructed as to present to the physical eye a fitting shrine for what the guardian of the Zeus-(or Jupiter) Initiation saw with spiritual vision. And it is the same with all Greek art. The wisdom of the Initiates flowed in mysterious ways into poets, artists, and thinkers. The Mysteries of the Initiates are found again, in the form of conceptions and ideas, in the systems of thought by which ancient Greek philosophers interpreted the universe. The influences of the spiritual life, the Mysteries of the Asiatic and African sanctuaries of Initiation, flowed into these nations and to their leaders. The great Indian teachers, the associates of Zarathustra, and the followers of Hermes had attracted disciples. These, or their successors, thereupon founded sanctuaries for Initiation, in which the ancient wisdom was revived in a new form. These were the Mysteries of antiquity. Here disciples were prepared to be brought into the condition of consciousness through which they might attain vision of the spiritual world.(23) From these sanctuaries of Initiation the Mysteries flowed forth to those who cultivated Spiritual Mysteries in Asia Minor, Greece, and Italy. (Important centres of Initiation were formed in the Greek world in the Orphic and Eleusinian Mysteries. In the Pythagorean School of wisdom, lingered the effects of the great wisdom-teachings and methods of past ages. On his distant travels, Pythagoras had been initiated into the secrets of the most varied kinds of Mysteries.)