Another thing that I've learned about is emotional affinities. Most emotions have an affinity counterpart but what makes them special is how they function. Unlike elemental affinity which enhances a spell's power through whatever element you have. The emotional ones enhance the power of a spell based on what emotion you're feeling and how strong it is along with what you're doing with that spell. So if you have an affinity for love and perform an act of magic out of love the spell is enhanced.