Hm, perhaps I can word this better then. I'm not saying my Au Ra used fantasia, I'm just saying I didn't think of everything that happened to my character up until I had done the change. I completely forgot about all the other garbage I went through during the MSQ because it was so long ago, from a player standpoint. So i never took into account how that story would have looked through the eyes of an Au Ra adventurer. That was on my end.
As for the Gods thing, yet again, I'm not saying the primals are Gods. Let me clear that up. Originally, due to me not knowing about Auri having access to other primals, I would have thought that there would have been some culture clash with the discovery of these primals, and the use of these egis. But now that I know that it wasn't something they had never been exposed to, that frees up some options. That's the kind of info I was searching out, so that I could cook up a better story by understanding more, that's all.
So essentially from what I can map out from what you guys have told me, my Au Ra could have been a fresh adventurer in a new land. Went through the whole warrior of light arc, etc. So I could have become an Arcanist through the Arcanist guild, instead of stumbling across this knowledge by some other means. That certainly clarifies things a bit. I just didn't know how all of this would have played out, outside the realm of the WoL arc. I'm trying to figure out where this would fit an Au Ra within their culture, and if there were any specific ties to other Summoners etc.