>>714560783
It's always been based on an amalgam of things, really. One of the earliest bits of lore we got about it was that the Flood of Darkness was caused by auracite as an FFT reference. Igeyorhm who caused the Flood resembled Lightning, and FFXIII's world also died to a Flood of Darkness in XIII-2. And then we had the voidsent Halicarnassus, an FFV boss, all the way in ARR. They've always pulled from all over for the Void.