Nichiren Buddhism in one's present form" ("sokushin jobutsu") he drew a distinction, insisting both concepts should be seen as practical and realizable amidst the concrete realities of daily life. He took issue with other Buddhist schools of his time that stressed transcendence over immanence. Nichiren's emphasis on "self-power" (Jpn. "ji-riki") led him to harshly criticize Honen and his Pure Land Buddhism school because of its exclusive reliance on Amida Buddha for salvation which resulted in "other-dependence." (Jpn. "ta-riki") In addition to his critique of Pure Land Buddhism, he later expanded his polemics to criticisms of the Zen, Shingon, and Ritsu sects. These
Doctrinal background of Zen we conceive of is the result of the working of the five skandhas—results of perception, feeling, volition, and discrimination. The five skandhas together compose consciousness. The "things" we are conscious of are "mere concepts", not "Ding an sich". It took Chinese Buddhism several centuries to recognize that sunyata does not refer to "wu", "nothingness", nor does Buddhism postulate an undying soul. The influence of those various doctrinal and textual backgrounds is still discernible in Zen. Zen teachers still refer to Buddha-nature, but the Zen tradition also emphasizes that Buddha-nature "is" sunyata, the absence of an independent and substantial self. In