Who is Ring from The Interpretation of Fairy Tales and what is their importance?

Ring is the protagonist of the story, "Prince Ring." He is attracted into the foggy woods (psychologically, the mysterious unconscious) by a hind with a gold ring on its antler. The hind symbolizes transformation (it was thought a deer sheds its antlers and grows more), and the ring is representative of the unified Self. Thus, Ring is the hero seeking the unified and realized Self.