This is in no way done. Right now this is just a 'scratch board' for rough ideas in my attempt to collector and sort such things.
_-_-_ Logic of the World
- Four Elements
- Two Origins
Outside of Logic
Seithr, the Magic Element
Azure and the Boundary = Akasha , or The Root of TYPE-MOON's Nasuverse. The Azure specifically seems to be the origin and destination of the Soul, where it comes from when one is born and where goes at death
I theorize that Izayoi's full classification is an: "Ars Armagus Grimoire".