Who is Papa Kahili from Sacred Journey of the Peaceful Warrior and what is their importance?

Papa Kahili is the powerful shaman on Molokai Island, Papa Kahili helps Mama Chia as a sickly young girl, correctly predicts she will never bear children, and adopts her when her parents die. Having taught her the huna ways, Papa Kahili then dies, leaving Mama Chia his ministry to others.