A third aspect of the all-inclusiveness of the daimoku comes to the fore in Nichiren’s writings after his banishment to Sado. This is the idea that the whole of the Buddha’s enlightenment is contained within the daimoku and accessible to the practitioner in the act of chanting it. This theme is most clearly developed in a passage from the Nyorai metsugogo gohyakusai shi kanjin honzon shō (The contemplation of the mind and the object of worship first [revealed] in the fifth of the five-hundred-year periods following the nirvana of the Tathāgata) or simply Kanjin honzon shō, regarded in the tradition as Nichiren’s single most important writing. In this work, written in question-and-answer style, a hypothetical interlocutor asks what is meant by the “contemplation of the mind” (kanjin). Nichiren responds that it is to “observe one’s own mind and see [in it] the ten dharma realms”—specifically, to see that one’s own mind contains the Buddha realm. Several rounds of further questioning and explanation follow as the hypothetical interlocutor finds it “hard to believe that our inferior minds are endowed with the Buddha dharma realm.” This questioner may perhaps be thought to represent the people of the Final Dharma age, who are not capable of practicing introspective contemplation on the three thousand realms in a single thoughtmoment. Finally, in a passage considered by many within the Nichiren tradition to represent the very core of his teaching, Nichiren indicates that “contemplating the mind” in the Final Dharma age is not a matter of “seeing” the identity of the Buddha realm with one’s own mind in introspective meditation, but of embracing the daimoku, which encompasses Buddhahood within it:

The Wu-liang-i Ching states, “Even if one is not able to practice the six Pāramitās, the six Pāramitās will naturally be present.” The Lotus Sütra states, “They wish to hear to the all-encompassing Way.” … To impose my own interpretation may slight the original text, but the heart of these passages is that Śākyamuni’s causal practices (ingyō) and their resulting merit (katoku) are inherent in the five characters myōhō-rengekyō. When we embrace these five characters, he will naturally transfer to us the merit of his causes and effects.”

While it is impossible in a short space to do full justice to Nichiren’s concept of the daimoku, two aspects of it will be outlined here: the daimoku as perfectly inclusive, and the daimoku as the seed of Buddhahood.

The daimoku, which Nichiren equates with the one vehicle, is all-encompassing, a claim he develops from several interrelated perspectives, beginning with his early writings. For example, in the Hokke daimoku shō, the daimoku is said to contain all teachings:

“The teachings of the seven Buddhas and the thousand Buddhas of the past, and of all the Buddhas since long kalpas ago, as well as the sūtras preached by the Buddhas of the present throughout the ten directions, are all followers of the single character kyō [sūtra] of the Lotus Sūtra. … Within this single character kyō [of myōhō-renge-kyō] are contained all the sūtras in the dharma realms of the ten directions.”

In a yet more encompassing sense, the daimoku contains, or rather is, the entirety of the dharma realm. Another passage of the same text reads:

“The five characters myōhō-renge-kyō … contain all sentient beings of the nine realms and also the Buddha realm. And because they contain [all beings of] the ten realms, they also contain the lands of the ten realms, which are those beings’ dependent recompense.”

Or in greater detail, from an earlier, 1260 writing:

“The doctrines of three thousand realms in one thought-moment and the Buddha’s enlightenment in the distant past, the core of the ‘Skillful Means’ and ‘Fathoming the Lifespan’ chapters, are contained within the two characters myōhō [Wonderful Dharma]. … All Buddhas and bodhisattvas, the causes and effects of the ten [dharma] realms, the grasses and trees, rocks and tiles throughout the ten directions— there is nothing that is not included in these two characters. … Therefore, the merit of chanting the five characters myōhō-renge-kyō is vast.”

Here the daimoku is equated with three thousand realms in one thought moment, the entirety of all that is. This identification can be found in some of Nichiren’s earliest writings. (Page 267-268)