Mitamaya

A mitamaya (御霊屋, literally mitama "soul [of the dead]" + ya "house"; also called, otamaya, tamaya, or soreisha 祖霊社, or "Reibyo" 霊廟)[1] is an altar used in Shinto-style ancestor worship, dedicated in the memory of deceased forebears.

It generally has a mirror symbolizing the spirits of the deceased or a tablet bearing their names and is used not only to enshrine blood relatives, but also to honor respected non-family members.

[4] In ancient times, people held domestic rites called Kinen-sai in the February or April and Niinamesai in November.

[1] During the Heian period cults of Goryō developed and people changed to honoring the dead in July for Urabon-e, and in January.

The Yoshida clan gave spirit ranks like Myōjin-gō, Reisha-gō, and Reijin-gō to the dead, who were sometimes worshipped at shrines.