Chapitre 299: Interlude - Blindspots in Omniscience

Since her advancement, and gaining her version of the Heavenly Eye, Marie had spent every waking hour (which, for the record, could span multiple days given the sparse sleep cycles of Mages) exploring her power. She wanted to know its quirks, weaknesses and limitations down to the minutiae. This proved to be difficult because magic was, to some extent, open to interpretation.

What was "fire"? It was the result of combustion. That was the classical definition. However, there were also other ways to create fire. Oxidation of Magnesium results in a fire too. Regardless of the many ways through which fire can be made, they are all codified and repeatable. The meaning of fire and how to create it does not vary from person to person. But when magic is involved, that doesn't always remain true.