They help weigh and balance the tree of the Yggdrasil. There is an even amount of them both light and dark whenever the balance starts playing more of one or the other it also affects us here in our world and every other Realm as well. The dark elves of Yggdrasil l are highly gifted in Black Magic ice magic and void energy manipulation. They have different house in quarters based on this the dark elves tend to stay more to the darker side of the tree for peacekeeping and balance maintaining and purposes they only come together once a year and that's to ensure that the tree stays alive and balanced.The light elves of Yggdrasil are excellent experts solar creation growth love compassion and light magic and manipulation of light energy they are only able to use this manipulation for positive balances and purposes which keeps the light side of the tree alive and balanced as well. The prince or King depending on who is available at the time meets with the other which is usually the queen or princess of the dark elves and they do a ritual to ensure that the trees vitality. they have not wanted Keepers in a very long time however they now feels that is imperative to keep the balance that they have some of theirs become conjurer's and obtain homes and got to go to keepers. With them they bring secrets of yourself and many secrets of the Forgotten knowledge of the past they are capable of revealing Secrets your ancestors have long forgotten and knowledge that is within your bloodline they are capable of wakening you to a higher understanding unto a higher point of Enlightenment than you ever thought was possible.