I have an idea, but I can't really try it out, since I'm work.

Do you think this has anything to do with FFXIV's deities? They mention prayer a lot. Also, there are 12 eggs and 12 deities. I wonder if we're supposed to be bring eggs to the altars or something.

I mean, the definition of Archon is literally, "A high-official, ruler, or authoritative figure" and comes from the Greek word arkhein which means 'to rule.'

So, if you take take 'Archon Earth Egg' or 'Archon Lightning Egg' in this context, it means 'Earth Ruler Egg' and 'Lightning Ruler Egg.'

I know one of the eggs you get from this is the Earth Egg. Has anyone tried going to Nophica's Alter in Gridania?

I'm looking at the maps now, trying to see if there's a specific place that we have to go or travel to that makes sense with the clues we're given, but that's all I can think of right now.