Nichiren’s mappō thought unites two important but hitherto distinct elements of Kamakura Buddhism: a universally feasible way of practice and belief in the possibility of becoming a Buddha in this world. Honen’s nembutsu could be practiced by anyone regardless of education, ability, and so forth, but his doctrine deferred the attainment of Buddhahood until after rebirth in the Pure Land, and emphasized human limitations rather than their inherent Buddha nature. Dōgen stressed the inherent Buddha nature and held that one attains enlightenment directly in the act of seated meditation, but the practice of zazen as he taught it was not universally accessible, requiring the environment of monastic life, observance of the precepts, and, one assumes, some degree of education. Nichiren’s teaching combined both a universally practicable discipline—the daimoku of the Lotus Sutra—and the doctrine of attaining Buddhahood as a common mortal.