Basic Blade Mistress Information:
You can request to be given a quest from any of the great trees (see Places In Normal Realm & Tree Quests), your reward for completing a quest is a favor unique to that tree.
What do favors do?
What do paper favors do?
Why? Because not so long ago players got greedy and used small armies of untrained characters to farm favors from quests so they could make massive stat totems really quickly.