Don J. Modesto wrote:
William Bodiford was kind enough to answer a query of mine with this: "Kamidana typically serve to establish a concrete link to a particular Shinto institution (jinja, jingu, taisha, etc.). Maintaining this link requires regular ritual performances. Training halls that do not want to maintain links to a particular shrine do not need a kamidana."
Sorry. This quote ought to read,
"In contemporary Japan…Kamidana serve to establish a link to a particular Shinto institution (jinja, jingu, taisha, etc.)...."