They appeared before us after we were struck with the compulsion to move toward the voice. Needless to say, that sort of mental influence can be very dangerous, and we can't assume these Luonto can always protect us. Beyond that, there isn't much I can tell you about them beyond what Mauri was able to tell me... [Sure would be helpful to have an actual mage around...]

He did say that the other two souls are called Henki and Itse- a person's life force and personality, respectively.