He studies 'Onmyodo' (way of Yin and Yang; occult divination system based on the Taoist theory of the five elements) from the shintohism perspective, and presented a new point at issue by verifying any connection with obvious phenomena in Japanese history successively.
神道の立場から「陰陽道」を研究し、日本史上の顕在化した事象との関わりを逐次検証することで新たな論点を提示。