The old people came literally to love the soil and they sat or reclined on the ground with a feeling of being close to a mothering power. It was good for the skin to touch the earth, and the old people liked to remove their moccasins and walk with bare feet on the sacred earth. Their tipis were built upon the earth and their alters were made of earth. The birds that flew in the air came to rest upon the earth and it was the final abiding place of all things that lived and grew. The soil was soothing, strengthening, cleansing, and healing.
--Luther Standing Bear, quoted by T.C. McLuhan in Touch the Earth: A Self-Portrait of Indian Existence