how do I do stuff like "gain enlightenment?" my characters randomly change to it and I am just sitting there wondering wtf I am doing
You can't, just unequip the Ring of Idealism.
Ring? Am I drunk!? uh... thanks!
does it replace the quests or just hide them?
Hide them and prevent them from counting as complete, but they can still progress.And once you take it off the "completed" goals will complete when she enter combat.