Hayashi Jussai encouraged the samurai class to cultivate themselves and he also helped to legitimize the role of the militaristic bakufutitle of Japanese military dictators who are nominally appointed by the Emperor.
His philosophy is also important in that it encouraged the samurai class to cultivate themselves, a trend which would become increasingly widespread over the course of his lifetime and beyond. Shogun (, shogun, Japanese: [o (listen); English: /on/ SHOH-gun) was the title of the military dictators of Japan during most of the period spanning from 1185 to 1868. Nominally appointed by the Emperor, shoguns were usually the de facto rulers of the country, though during part of the Kamakura period shoguns were themselves figureheads. The shogun's officials were collectively referred to as the bakufu (, "tent government"); they were the ones who carried out the actual duties of administration, while the Imperial court retained only nominal authority. 
