Furthermore, based on his own sense of religion, Atsutane willingly practiced research and analysis of various religious doctrines, including Buddhism, Confucianism, Taoism, Christianity and the study of Western sciences, which was unusual for the time, and named his study Hakke.
また、篤胤は独自の宗教観に基づき、当時としては珍しく仏教・儒教・道教・蘭学・キリスト教など、さまざまな宗教教義なども進んで研究分析し八家の学と自ら称していた。