Nichiren does not comment extensively on the six forms of sensory purification. But in one letter, he addresses at some length a passage from the “Benefits Obtained” chapter in the section discussing the purification of the mental faculty: “If they [expounders of the Lotus] teach the works on worldly affairs, treatises on political science or enterprise, all these will be in harmony with the true dharma” (271). This means, Nichiren says, that the Lotus takes worldly dharmas, or phenomena, as “immediately comprising the whole of the buddha-dharma,” a feature that he saw as distinguishing it from other sūtras: “The sūtras preached before the Lotus Sūtra hold in essence that all dharmas are produced from the mind. To illustrate, they say that the mind is like the great earth, while the grasses and trees [that grow from it] are like the dharmas. Not so with the Lotus Sūtra. [It teaches that] the mind is itself the great earth, and the great earth is precisely the grasses and trees. The sūtras preached before it say that clarity of mind is like the moon and that purity of mind is like a flower. Not so with the Lotus Sūtra. It teaches that the moon is the mind, the flower is the mind.”

[I]n another extravagant illustration of the Lotus Sūtra’s inconceivable liberative powers, the Buddha asks his hearers to imagine that one person, hearing the Lotus Sūtra, rejoices and teaches it to another, who similarly rejoices and teaches it to another, and so on. The merit gained by the fiftieth person in succession on merely hearing the sūtra and rejoicing in its message, Śākyamuni says, is incalculably, inconceivably greater than that of someone who over an eighty-year period first gives immeasurable gifts to beings in billions of worlds and then leads them to the liberation of an arhat.

Today we are inclined to read these statements with attention to their rhetorical function in “constructing” the Lotus Sūtra as inconceivably wonderful. Nichiren and his contemporaries, however, would not have seen this as a rhetorical device. For them, the sūtras faithfully recorded the words of the Buddha, who is by definition both omniscient and free from falsehood. In short, they were statements of literal truth. “What other sūtra,” Nichiren asks, “teaches that incalculable merit accrues to one who arouses even a single thought of willing acceptance, or to the fiftieth person who rejoices upon hearing it? Other sūtras do not claim such merit for even the first, second, third, or tenth hearer, let alone the fiftieth!”

As he had with the notions of the first stage of faith and the first stage of practice that are based on the “Description of Merits” chapter, Nichiren employed the analogy of “transmission to the fiftieth person” from the “Merits of Joyful Acceptance” chapter to counter claims from Pure Land devotees that the Lotus Sūtra, being extremely profound, was too difficult to practice for deluded persons of the Final Dharma age. If ease of practice were to be a criterion, he said, no practice could be easier than spontaneously rejoicing on hearing the Lotus Sūtra. Nichiren argued that, far from excluding the ignorant, it is precisely because the Lotus Sūtra is so profound that it can save beings of any capacity whatsoever. In this connection, he often cited Zhanran’s remark: “The more true the teaching, the lower the capacity [of the persons it can bring to liberation.]” However limited one’s capacity might be, that person is ennobled by their Lotus Sūtra practice. Therefore, Nichiren wrote, his followers were not to be despised: “If one looks into their past, they are great bodhisattvas who have made offerings for eight billion eons to buddhas numerous as the sands of the Hiraṇyavatī and Ganges rivers. And in terms of the future, they will be endowed with the merit of the fiftieth person [to hear the sūtra], which surpasses that of one who gives gifts to incalculable sentient beings for a period of eighty years. They are like a crown prince wrapped in swaddling clothes or a newborn dragon. Do not look down on them. Do not hold them in contempt!”

The first part of Chapter Seventeen is counted as part of the “one chapter and two halves” that constitute the “main exposition” section of the origin teaching. The remainder of the chapter (from “At that time the Buddha addressed bodhisattva mahāsattva Maitreya … ,” (245) speaks of the merits to be gained after the Buddha’s parinirvāṇa and thus begins the “dissemination” section of the origin teaching. Nichiren drew on this chapter and the next to support his fundamental assertion that chanting Namu Myōhō-renge-kyō is the practice appropriate to the Final Dharma age and contains all possible merit — indeed, the whole of the Buddhist path — within itself.

What is the significance of the revelation of the Buddha’s immeasurable “lifespan,” that is, the time that has elapsed since his original attainment of supreme enlightenment? English language scholarship on Lotus Sūtra often speaks of the primordial Śākyamuni of the “Lifespan” chapter as the “eternal buddha.” This term is easy to understand but carries Western philosophical overtones of abstract metaphysical truth; the sūtra’s emphasis lies rather in the Buddha’s “constant residing” here in the world. For the sūtra’s compilers, this claim refigured the Buddha in accordance with the Mahāyāna bodhisattva ideal: No longer was he a teacher of the past, forever departed into final nirvāṇa, but an awakened being perpetually active in this and other worlds for living beings’ sake.

Zhiyi proposed several reasons why the Buddha ultimately rejected the offer of the bodhisattvas from other worlds to propagate the Lotus Sūtra in the present, Sahā world and instead summoned the bodhisattvas from beneath the earth. The bodhisattvas from other worlds, he said, had responsibilities to benefit the beings of their own lands that they could not neglect. Furthermore, their ties to this world were only superficial, and so their efforts at spreading the dharma would have been ineffective. Had the Buddha accepted their offer, he would have had no reason to summon the bodhisattvas from beneath the earth. These bodhisattvas were Śākyamuni’s original disciples, taught by him since the inconceivably distant past. Their ties to the Sahā world were profound, and they could also travel to other realms and benefit the beings there. And, without their presence, Śākyamuni could not have revealed his true identity as the Buddha awakened since the inconceivably distant past.

Nichiren knew the Lotus Sūtra thoroughly, and, as he did with other chapters, drew occasionally on phrases and passages from the “Ease in Practice” chapter to support his teaching. For example, he cited the statement following the parable of the jewel in the topknot) — “This Lotus Sūtra is the secret treasure house of all the buddha tathāgatas, and the foremost among all the sūtras” — to argue against claims that the secret or esoteric teachings surpassed the Lotus Sūtra. He quoted the passage, “Even the title of this sūtra cannot be heard in incalculable lands,” to stress the immense good fortune of being born in a country where, although far from Buddhism’s birthplace in India, one could encounter the Lotus Sūtra and chant its daimoku. He also cited the “Ease in Practice” chapter’s reference to “the troubled world to come,” which his predecessor Saichō had identified specifically with the age of the Final Dharma, and frequently invoked the statement that the Lotus is “treated with hostility by the entire world and is difficult to believe in.”