Chokoji is a Soto sect Zen temple in a remote area of Iwami that has a deep connection with the Iwami Ogasawara Clan.
The temple was founded in the 14th century and seems to have been originally a site founded by the clan as a spot for samurai to recover from wounds. A wooden pillow held by the temple was a gift from Ashikaga Yoshitane to Ogasawara Nagataka for his help in the Battle of Kyoto in 1508
The Ogasawara were not a big clan but were given the domain to protect the Iwami coast following the Mngol Invasions. As the Warring States Period increased the power of the nearby Amago and Ouchi Clans the Ogasawara switched allegiances several times and eventually submitted to the Mori.
Chokoji was the family temple for the clan. The honzon is a Shaka Nyorai, and the Kannon for the pilgrimage is in its own Kannon-do (photo 6).