Day 19 concludes Chapter 14, Peaceful Practices, and begins Chapter 15, The Appearance of Bodhisattvas from Underground.

Having last month witnessed the arrival of the Bodhisattvas from underground, we meet the leaders of those bodhisattvas and conclude today’s portion of Chapter 15, The Appearance of Bodhisattvas from Underground.

Those Bodhisattvas had four leaders: 1. Superior-Practice, 2. Limitless-Practice, 3. Pure-Practice, and 4. Steadily-Established-Practice. These four [great] Bodhisattvas were the highest leaders [of those Bodhisattvas]. In the presence of the great multitude, they joined their hands together towards Śākyamuni Buddha, looked up at him, and inquired after him saying:

“World-Honored One! Are you in good health? Are you peaceful or not? Are the living beings, whom you are to save, ready to receive your teachings or not? Do they not fatigue you?’

Thereupon the four great Bodhisattvas sang in gāthās:

World-Honored One, are you peaceful?
Are you in good health?
Are you not tired
With teaching the living beings?
Are they ready
To receive your teaching,
Or are they not?
Do they not fatigue you?

Nichiren offered this observation about the four great leaders of the Bodhisattvas who emerged from the earth:

These four great bodhisattvas neither presented themselves at the seat of enlightenment under the bodhi tree where Śākyamuni Buddha attained Buddhahood for the first time, nor rushed to the vicinity of the Hiraṇyavati River when the Buddha passed away. During the eight years when the Buddha preached the Lotus Sūtra on Mt. Sacred Eagle, moreover, they were neither among those holy people such as Bodhisattvas Mañjuśrī and Maitreya who assisted Him in preaching the preface and main discourse of the theoretical section, nor among such great bodhisattvas as Avalokiteśvara and Wonderful Voice who vowed to spread the sūtra after the death of the Buddha at the assembly in the epilogue of the essential section. Upholding solely this one great secret dharma, they retired to their true abode underground, not once reappearing in the world even after the death of the Buddha, for 2,000 years in the Ages of the True Dharma and Semblance Dharma. This was, after all, because the Buddha entrusted to them the propagation of this one great secret dharma solely in the Latter Age of Degeneration.

Soya Nyūdō-dono-gari Gosho, A Letter to Lay Priest Lord Soya, Writings of Nichiren Shōnin, Doctrine 3, Pages 160.