Abstract
It is not widely known that Hisao Nakai, who left a significant mark in the treatment of schizophrenia, had a relationship with Zen. However, in his remarks at roundtable discussions and other such events, he spoke of how his Zen experience served as a foundation for his interactions with his patients. In addition, Nakai’s dialogues were sometimes perceived by his interlocutors as a kind of Zen question-and-answer session. When we delve deeper into such dialogues, we find a nature that could be described as religious. Nakai was self-conscious that the quality of such experiences made psychiatrists arrogant. It could be said that Nakai contained his arrogance by choosing the Catholic faith at the stage when he left clinical practice.
