The simple secret is this: There are cycles within greater cycles, which are all contained in the one Kalpa of 4,320,000 years. It is at the end of this cycle that the Kalki Avatâra is expected—the Avatâra Whose name and characteristics are secret, Who will come forth from Shamballa, the “City of Gods,” which is in the West for some nations, in the East for others, in the North or South for yet others. And this is the reason why, from the Indian Rishi to Virgil, and from Zoroaster down to the latest Sibyl, all have, since the beginning of the Fifth Race, prophesied, sung, and promised the cyclic return of the Virgin—Virgo, the constellation—and the birth of a divine child who should bring back to our earth the Golden Age. No one, however fanatical, would have sufficient hardihood to maintain that the Christian era has ever been a return to the Golden Age—Virgo having actually entered into Libra since then. Let us trace as briefly as possible the Christian traditions to their true origin. First of all, they discover in a few lines from Virgil a direct prophecy of the birth of Christ. Yet it is impossible to detect in this prophecy any feature of the present age. It is in the famous fourth Eclogue in which, half a century before our era, Pollio is made to ask the Muses of Sicily to sing to him about greater events. The last era of Cumæan song is now arrived and the grand series of ages [that series which recurs again and again in the course of our mundane revolution] begins afresh. Now the Virgin Astræa returns, and the reign of Saturn recommences. Now a new progeny _descends from the celestial realms_. Do thou, chaste Lucina, smile propitious to the infant Boy who will bring to a close the present Age of Iron,(635) and introduce throughout the whole world the Age of Gold.... He shall share the life of Gods and shall see heroes mingled in society with Gods, himself be seen by them and all the peaceful world.... Then shall the herds no longer dread the huge lion, the serpent also shall die: and the poison’s deceptive plant shall perish. Come then, dear child of the Gods, great descendant of Jupiter!... The time is near. See, the world is shaken with its globe saluting thee: the earth, the regions of the sea, and the heavens sublime.(636)