The Eleusinian Mystery rites made up an awesome mystery school in ancient Greece. It has a whole “liturgy” based on a Mother-God and Daughter-God who were separated, descended into hell, had an annual resurrection (Easter).  This early Greek “religion” has long been compared to the masculine Father-God and God-the-Son “myth cycle” of Christianity.  One of our seminarians read that Cicero was an initiate and dug deeper into this “most famous of the secret religious rites of ancient Greece” (according to Encyclopedia Brittanica).

I have always loved to study about them. One of the longest esoteric mysteries and teachings websites has a page on this topic which existed before Wikipedia existed. Here it is: http://www.crystalinks.com/eleusinian.html

Encyclopedia Brittanica online also has an interesting article: http://www.britannica.com/EBchecked/topic/184459/Eleusinian-Mysteries

Here’s a nice bit of information: http://athang1504.blogspot.com/2012/05/eleusinian-mysteries.html