Máttáráhkka is the goddess who gives souls to unborn babies. She has been imprisoned by Rohttu, the God of Pestilence, who wants to lead all wandering souls to his own domain. She is kept inside a mountain on a floating island in Sáivu world occupied by Rohttu, and Rohttu's occupation of Sáivu causes Sáivu to become empty of life and color.