The pyramidal architectural design in early historic times was a development on the spiral symbol of the office of the shaman and had its roots in prehistoric antiquity. The spiral motif is especially obvious in the Sumero-Babylonian ziggurat. An aerial view of the ziggurat would translate into a spiral design. Similarly would an aerial view of the step pyramid translate into a series of concentric circles. What did the spiral symbol of shamanic antiquity stand for?
