I'm seeing veiled parallels to the Orphic egg which makes sense. Apparently the progenitor of this notion revealed Glycon to the public by slicing open a goose's egg. I'm also seeing a veiled connection to the notion that the snake, the Divine Feminine, when reunited with the Divine Masculine, produces a Divine Child or enlightened being. Apparently the cult focused on "fertility" with barren women seeking Glycon's blessings for childbirth. It was, comparatively speaking, a flash in the pan, but it counts as yet another tradition that is consistent with the perennialist perspective.