SO I HAVE A HYPOTHESIS and I need lore hounds to help me determine its viability/veracity! There may or may not be a character concept wanting to root in this.
We know that Hydaelyn (the planet) has an internal aetherflow, akin to the Lifestream in FFVII. We also know that the Void is a thing (though how much about that thing we know, I'm unsure) - and we know that Black Magic evolved from Thaumaturgy, so Void magic can be manipulated in a manner similar to aether.
We also know that people have internal aetherflows, as well as an inner darkness that can be harnessed in much the same way as one's internal aether - this is what allows Dark Knights to join the Darkside.
So what are the chances that a person's inner darkness is analogous to the Void, in the same manner that a person's inner aether is analogous to the planet's?
And a bonus question: are Au Ra dravanian or voidsent in origin?