"The Immovable One" is an inscription engraved on a statue erected in 1794 in Kashiyama Village. This statue, erected under a cliff and at the edge of a mountain stream, is evidene of the strict religious training people underwent at that time.
Fudo Myo'o is one of the kings of light or wisdom, the third ranking category in Japanese Buddhist iconography.
Myo'o are considered to be incarnations of the cosmic Buddha who proselytized to save nonbelievers with the power of sacred words. The most popular of the Myo'o is Fudo-sama.
From Japan, an Illustrated Encyclopedia. Kodansha, 1993