Wishing to eliminate the syncretism of Buddhism and Shintoism and have the nation return to the simple and right world of ancient times, Razan visited many sites of folklores and origins of shrines and recorded legends of the main shrines in Japan by referring to "Kojiki" (Records of Ancient Matters), "Nihonshoki" (Chronicles of Japan), "Engishiki" (an ancient book for codes and procedures on national rites and prayers), "fudoki" (description of regional climate, culture, etc.) and others.
神仏混淆を斥け、国家を上古の淳直の世に立ち返らせようとこいねがい、口碑縁起を訪ね歩き、これを『古事記』、『日本書紀』、『延喜式』、『風土記』その他に証し、日本のおもな神社の伝記その他をしるしたものである。