TadibyaTadibya is the mediator between the ordinary world and the upper- and underworlds of the spirits among the Nenets people. The Nenets rank their shamans by their spiritual attachment and function as well as their experience.CategoriesThe following categories of Nenets shamans are listed by Mihaly Hoppal, who cites research conducted by L. Khomitch and Leonid A. Lar. Vidutana, strong shamans standing in contact with the upper worldYanyani tadebya, shamans belonging to the earthSambana shamans, shamans able to receive messages from dead people and to perform other rituals concerning the dead.