In Touhou: the Embodiment of Scarlet Devil, for each of the Spell Cards, there is a property next to each of the sub-weapons. For example, Reimu's "Homing Amulet" and "Persuasion Needle" list "Spirit" and "Dream" next to them respectively. Marisa's "Magic Missile" is "Magic" while her "Illusion Laser" is... "Love"?
Are these properties by which the sub-weapon is stronger against certain enemy types? Or are they simply for flavor?