Cycles are fundamental in nature and influence the thoughts of Indian peoples. The circle is one of the most meaningful symbols of Indian peoples and is given expression in the Medicine Wheel. The Sacred Tree is a symbol of Indian spiritual philosophy. The pipe ceremony and medicine wheel embody the concepts of the Great Circle and the sacred number 4. This guardian spirit is a guiding force in their lives and may give them certain capabilities.
Spiritual practices have a strong social aspect.
Men and women whose spirit helpers prove to be especially powerful become Indian healers. They may have powers to heal, gifts to give guidance, or may perform other significant activities.