Quote Originally Posted by yukaru View Post
are the garleans trying to summon? I thought they were attempting to destroy the beastmen and they're gods....
I know they are doing stuff with crystals right..... so does that tie in with summoning of a primal?
It's stated directly in the Limsa-lominsa "Into the Dark" quest for the Dzemael Darkhold. After you complete the instance portion and return to the Owl's Nest, the NPC talks about how the Imperials are busy draining crystals for Ceruleum (The power-source for their magitek), but that they're also attempting to use the Ceruleum to summon their own primal.