The śrāvaka disciples such as Śāriputra, Kāśyapa, Ānanda, and Rāhula, who were guaranteed to be future Buddhas in the theoretical section of the Lotus Sūtra through the three cycles of the Buddha’s preaching (dharma, parable, and past relationships) had learned the Lotus Sūtra far in the past, 3,000 dust-particle kalpa (aeons) ago, from a bodhisattva who was the 16th prince of the Great Universal Wisdom Buddha, namely Śākyamuni Buddha today. Nevertheless, due to evil karma they abandoned the Lotus Sūtra, embracing such Mahāyāna sūtras as the Flower Garland Sūtra, Wisdom Sūtra, Sūtra of Great Assembly, Nirvana Sūtra, Great Sun Buddha Sūtra, Revealing the Profound and Secret Sūtra, and Sūtra of Meditation on the Buddha of Infinite Life or Hinayāna Āgama sūtras. While doing so, they gradually declined in status to the realms of heavenly and human beings and finally to the three evil realms. As a result for as long as 3,000 dust-particle kalpa they spent much of their time in the Hell of Incessant Suffering, some of their time in the seven major hells, once in a long while in the other one hundred or so hells, and on rare occasions in the realms of hungry souls, beasts, and asura. It was after the 3,000 dust-particle kalpa (aeons) that they were able to be born in the realm of human or heavenly beings.

Therefore, it is stated in the Lotus Sūtra, fascicle 2 (chapter 3), “They will always stay in hell, strolling in it as though it were a garden, and remain in other evil realms as if they were at home.” Those who committed the ten evil acts will fall into such hells as the hell of regeneration and that of black ropes, where they spend 500 or 1,000 years. Those who committed the five rebellious sins, are destined to the Hell of Incessant Suffering for as long as one medium kalpa before being reborn. Those who abandoned the Lotus Sūtra, however, will fall into the Hell of Incessant Suffering and remain there for innumerable number of kalpa, though their sin does not seem to be as terrible as the sin of murdering parents.

Kyōdai-shō, A Letter to the Ikegami Brothers, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 73