In fairness, Aurene stated that while sitting in the Eye she's simultaneously flying around the Mists repairing Kralkatorrik's damage. If any of this works at all intuitively, which granted it doesn't necessarily, that would mean that at the very least a pretty big facet of her is separated, so the physical form we see only represents a fraction of her power. The only representation we've gotten of her full form was during the LWS4 end cinematic, and that was somewhat abstract, but was definitely bigger than the Aurene we see now.