A legend related of the origin of the Tung ak is as follows: A father had a son and daughter whom he loved very much. The children fell ill and at last died, although the father did all in his power to alleviate their sufferings, showing his kindness and attentions to the last moment. At their death the father became changed to a vicious spirit, roaming the world to destroy any person whom he might meet, determined that, as his dear children died, none others should live. Tung ak visits people of all ages, constantly placing obstacles in their pathway to prevent the accomplishment of their desires, and provoking them beyond endurance so as to cause them to become ill and die and go to live with him. Tung ak no longer knows his own children and imagines all persons that he meets to be his children. Famine, disease, and death are sent abroad to search for these lost children. People at last began to devise some means of thwarting the designs of Tung ak and discovered that a period of fasting and abstinence from contact with other people endowed a person with supernatural powers and enabled him to learn the secrets of Tung ak. This is accomplished by repairing to some lonely spot, where for a greater or less period the hermit abstains from food or water until the imagination is so worked upon that he believes himself imbued with the power to heal the sick and control all the destinies of life. Tung ak is supposed to stand near and reveal these things while the person is undergoing the test. When the person sees the evil one ready to seize upon him if he fails in the self-imposed task to become an “Angekok” or great one, he is much frightened and beseeches the terrible visitor to spare his life and give him the power to relieve his people from misfortune. Tung ak then takes pity on him, and imparts to him the secret of preserving life, or driving out the evil which causes death. This is still the process by which the would-be shaman fits himself for his supernatural duties. The newly fledged angekok returns to his people and relates what he has seen and what he has done. The listeners are awed by the recitals of the sufferings and ordeal, and he is now ready to accomplish his mission. When his services are required he is crafty enough to demand sufficient compensation, and frankly states that the greater the pay the greater the good bestowed. A native racked with pain will gladly part with all of his worldly possessions in order to be restored to health.