Abstract
The Kakure Kirishitan are the descendants of the communities who maintained the Christian faith in Japan as an underground church during the time of persecution, which lasted for about 250 years, and who then chose not to be reconciled with the newly returned Catholic missionaries. In this chapter, the author discusses how Christianity was welcome and suppressed in Japan, and what happened in the depth of Kakure Kirishitan movement during the period of persecution, referring to their Bible, Tenchi Hajimari no koto, and Orasho (oratio; prayers). Through these discussions, I attempted to present some speculations on Japanese psyche and religious psychology.