Day 12 concludes Chapter 7, The Parable of the Magic City, and completes the Third Volume of the Sutra of the Lotus Flower of the Wonderful Dharma.
Having last month considered what became of the 16 princes, we consider those who were taught by the śramaṇeras.
“Bhikṣus! When we were śramaṇeras, we each taught many hundreds of thousands of billions of living beings, that is, as many living beings as there are sands in the River Ganges. Those living beings who followed me, heard the Dharma from me in order to attain Anuttara-samyak-saṃbodhi. Some of them are still in Śrāvakahood. I now teach them the Way to Anuttara-samyak-saṃbodhi. They will be able to enter the Way to Buddhahood by my teaching, but not immediately because the wisdom of the Tathāgata is difficult to believe and difficult to understand. Those living beings as many as there are sands in the River Ganges, whom I taught [ when I was a śramaṇera], included you bhikṣus and those who will be reborn as my disciples in Śrāvakahood after my extinction. My disciples who do not hear this sūtra or know the practices of Bodhisattvas, after my extinction will make a conception of extinction by the merits they will have accumulated by themselves, and enter into Nirvāṇa as they conceive it. At that time I shall be a Buddha of another name in another world. Those who will enter into Nirvāṇa as they conceive it will be able [to be reborn] in the world I shall live in, seek the wisdom of the Buddha, and hear this sūtra. They will be able to attain [true] extinction only by the Vehicle of the Buddha in that world because there is no other vehicle except when the Tathāgatas expound the Dharma with expedients.
Nichiren discusses this unique relationship between śramaṇera and his disciples in his letter Treatise on the Essence of the Lotus Sūtra:
When we compare Śākyamuni Buddha in the Lotus Sūtra to Buddhas in other sūtras in regard to the period of practicing the Bodhisattva way and saving people, other Buddhas’ length of practice is said to have been three asamkhya kalpa or five kalpa, while Śākyamuni Buddha has been a great Bodhisattva planting the seed of enlightenment in all living beings in the Sahā World since 3,000 dust-particle kalpa ago according to the “Parable of a Magic City” chapter of the Lotus Sūtra. Therefore, none of the living beings in six lower realms in this world have any relationship with any Bodhisattvas in other worlds.
Hokke Shuyō Shō, Treatise on the Essence of the Lotus Sūtra, Writings of Nichiren Shōnin, Doctrine 2, Page 208