The Medicine Dance, instituted by O-an-tay´-hee, was conducted as the proceedings of a secret society. War prophets and medicine men, _waw keen_, were revered as demi-gods. They were believed to have led spiritual existences, enclosed in seeds, something like those of the thistle, which were wafted to the abode of the gods, with whom the _waw keen_ sustained confidential relations. They received instruction in the magic of the spirit-land and went out to study all nations; then, selecting a location, were born into the world.
When, at the proper time, a person signified his desire to join the priesthood, he was initiated by the Medicine Dance. First, the candidate must take a hot bath, four days in succession; then he was taught the uses of medicine and its mysteries by the old men of the society; after which, he was provided with a dish and spoon. On one side of the dish was carved the head of some animal, in which lived the spirit of Eeyah, the Glutton God. The owner always thereafter carried the dish to the Medicine Dance. He was taught the use of paints and must always appear in the dance, decorated in the same manner. The paint was supposed to have supernatural virtue and caused an object to become invisible or invulnerable. In battle, it was regarded as a life preserver.
Before beginning the dance of initiation, ten or twenty prominent members spent the night dancing and feasting. In the morning, the tent was opened. The candidate, painted and nude, with the exception of breech-cloth and moccasins, was seated on a pile of blankets, an elder being stationed in the rear. The master of ceremonies, bag in hand, approached, ejaculating, "_Heen, heen, heen!_" and raising the bag to a painted spot upon the breast of the novice. Suddenly the latter was pushed forward and covered with blankets. The dancers collected around him. The leader, throwing off the covering, chewed a piece of the bone of O-an-tay´-hee and sprinkled it over him. Dancing around the candidate, the members patted his breast until he heaved up a shell, which had been placed in his throat. Life was now fully restored; and the shell was passed from hand to hand for examination. Ceremonies closed with more dancing, continued until four sets of singers, with gourds, drums and rattles, had been exhausted.