Shimenawa It became traditional to mark off especially sacred areas with a sacred rope or shimenawa, to which symbolic bundles of rice straw were attached and o-shide which were cut and folded zigzags of white paper. The o-shide marked the imminence of the spirit of the place of tree of rock and ultimately, as religion developed, of the presence of the deity. http://www.britishorigami.info/academic/lister/spiritual.htm