Class Lore Questions

[Marxel]

Hello! Relatively new player here (just got in between Heavensward and Stormblood) with some questions on class lore. Particularly BLM and AST. I started off as a WHM and understood that easily enough. A classic healer I'd imagine would use the powers of nature and at a higher extent, Holy magic. This game though has a *unique* view to me about Black magic. If it is supposed to kind of counteract White magic, you'd think it'd be more unholy and dark like the DRK abilities. When I imagine forbidden arts, I think of summoning demons and hexes. Shadows and skulls kind of thing. Then again I'm coming from other big title MMOs where that's the norm. I guess I don't understand how, for example, Fire is seen as Black magic - as fire could be used to cauterize a wound and is a naturally occurring element. Why don't Black Mages cast flames of Shadow or pitch black Ice instead?

The same goes for AST. I'm currently levelling that job and I don't think the in-game quests explained 100% how we're actually using our magic to heal and do damage. I can imagine calling down a falling star would hurt, but I don't know enough about astrology and space to explain how we're healing either.

Just some ponderings I've had playing the game. Any thoughts? Comments? Any tidbit is appreciated from a newbie Sprout.