User blog comment:Kaido King of the Beasts/What's Up With Pernida and Mimihagi?/@comment-5147109-20150928141224

I have the theory that each limb of the Soul King belongs to each of the different races, ie. Normal Humans, Quincy, Hollows, and Shinigami and whoever the body of the Soul King is determines which race is dominant and maintains the balance, for example, the Soul King was formerly Shinigami so Soul Society and the Royal Realm was built around them, now that a Quincy has taken the role of Soul King, Soul Society is built around them now.