Do Scholars use 'White Magic'

[Zhao]

In terms of Final Fantasy magicks, many of us are used to categorizing the spells themselves. If it cures, it's a "white" magic. Raw damage, it's a "black" magic. Buffs and debuffs might be "Green" or "Time" magicks, and so on. That doesn't seem to be the case in Final Fantasy XIV. Spells do have a few objective qualities; one being the elemental alignment. However, the names and categories given to spells seem to reflect an organic and changing set of traditions in the game. Geography and chronology tends to end up mattering more than anything else.

Question: Would it be useful to look at the three healing classes' mana regenerative abilities and how they take in aether? These skills [Shroud of Saints(WHM), Aetherflow(SCH), and Luminiferous Aether(AST)] are simply given to us, rather than being explained in a class quest. While they all tap into external sources, I lack the sleep and energy to think too deeply about the where, how, etc.

One case that bothers me is Luminiferous Aether, which I may currently be misunderstanding is several different directions. Is it tapping into the general aether of the stars, or perhaps specifically The Ewer? On a more literal level, it could be simply the light of the stars, which is effectively solar energy? 0.o'
Just occurring to me now too, if Aetherflow taps into the aether network around Eorzea, and Shourd of Saints takes from local surroundings(?), how much harder would it be to channel to distant stars? Maybe Aetherflow and Luminiferous Aether are two sides of the same coin, but Luminiferous Aether is affected by celestial factors. Similar to the way the moon creates waves in the ocean.