I'm reading through Helen Palmer's 2011 Enneagram Journal article on the connection between the Enneagram and astronomy. I'm going to take his opportunity to get better acquainted with a few principles that underlie her thesis. The first one (that I randomly picked) is that the Enneagram symbol could be modelled after three mythological relationships, each involving three Greek gods each, that ruled the world during the Golden Age.
It's the time when there was complete peace and harmony on earth between humankind and the gods. According to wikipedia, "[Men] lived like gods without sorrow of heart, remote and free from toil and grief: miserable age rested not on them; but with legs and arms never failing they made merry with feasting beyond the reach of all devils." This was the first "age of man". After that, we had the Silver Age, the Bronze Age, the Heroic Age (according to the Greek poet Hesiod), and the Iron Age (the one we're in now). (Apparently the Roman poet removed the Heroic Age). Each age is supposedly worse than the one preceeding it.
The early writing propose a pastoral Greek town called Arcadia as the place where this idyllic life all started, but that's disputed. Basically, this is the time when man-goats ran around playing the panflute with their god-friends under shady trees. laughing and having a good time. The god who ended the Golden Age, Prometheus, was chained to a rock by Zeus where an eagle eternally ate his liver.