Śākyamuni is lord of this threefold world; all lesser rulers hold their territories in fief from him. With this concept of the Buddha, Nichiren asserted the superior authority of the Lotus Sūtra over that of worldly rule. Śākyamuni also presides over a pure land, the Pure Land of Eagle Peak (ryōzenjōdo), and Nichiren often assured his followers that their deceased relatives were with Śākyamuni there. In short, Nichiren’s concept of the object of worship not only posits a Buddha who encompasses all things, but itself attempts to encompass all views of the Buddha. (Page 274)
Original Enlightenment and the Transformation of Medieval Japanese Buddhism