The "I Ching" had an important influence on Tokugawa Shinto. First, it played a crucial role in the discussion of Confucian-Shinto relations; many Tokugawa Confucians and Shintoists used it to uphold the doctrine of the unity of Confucianism and Shinto, and Shintoists and scholars of National Learning (kokugaku) used it for its metaphysical and divinational value. Second, scholars of National Learning transformed it from a Confucian classic into a Shinto text, claiming that it was the handiwork of a Japanese deity.

Japanese agricultural scholarship reached its peak in the Tokugawa period (1603-1868). Most of its representative works were imbued with the Chinese metaphysical doctrine of yin-yang-wu-hsing. They used the ideas of yin-yang, wu-hsing, yun-ch'i, hexagrams, and feng-shui extensively to develop their views and to explain various practices. There were two different attitudes towards Chinese concepts among Tokugawa scholars. Some regarded Chinese ideas as universal principles, and faithfully introduced them to Japan, whereas some were faced with the problem of national identity and (...) attempted to accommodate Chinese metaphysical principles to Japanese agriculture. This article examines the adoption of the yin-yang-wu-hsing doctrine in Tokugawa agriculture through a careful and critical textual study of several major Tokugawa writings. (shrink)