Read the following quote from Black Elk Ogala Sioux Holy Man: You have noticed that everything an Indian does is in a circle and that is because the Power of the World always works in circles and everything tries to be round Everything the Power of the World does is done in a circle. The sky is round and I have heard that the earth is round like a ball and so are all the stars. The wind in its greatest power whirls. Birds make their nests in circles for theirs is the same religion as ours. The sun comes forth and goes down again in a circle. The moon does the same and both are round. Even the seasons form a great circle in their changing. Our tepees were round like the nests of birds and these were always set in a circle. The nations hoop a nest of many nests where the Great Spirit meant for us to hatch our children.