 Complete the following phrase:  The Grass Dancer often describes a Yuwipi ceremony where tribe members gather together to call on the spirits for answers. An example of this ceremony happens in chapter 3 when Archie Iron Necklace has a dream about a medicine hole. During the Yuwipi ceremony, the spirits of Sioux ancestors guide the tribe members on a vision where Archie Iron Necklace, Herod Small War, Frank Pipe, and Harley Wind Soldier appear as young Sioux Indians riding their horses on the plain in the year 1877. On this day, one year after the 