Stone God of Nanoka-Ichiba in Yamanashi, Japan
Surrounded by green mountain ranges, Yamanashi Prefecture is home to sites of ancient worship, most notably shrines dedicated to Mount Fuji. There is also a folk belief unique to Yamanashi, which many Japanese folklorists consider an enigma: Maruishi-gami, or “spherical stone gods.” Names and natures do agree, as the Maruishi-gami is just what it’s called—a spherical stone. But are they natural or artificial? Hard to tell, it seems. How does one worship them? Depends on whom you ask. They...