I thought the last trilogy would lead us there, it sort of did, but absolutely didn’t. Balance in the force, if the darkness is present in nature (the cave, the pit) it has its place in the balance.
If we take these dark and light sides of the force and put our emotions in them (as suggested by Lucas), what truly matters is wether you act on the impulses or you only listen to the message they provide. Anger can be good, but it can destroy you if it is anger who commands instead of the balanced messages of all emotions, the grey.