Because the pre-Lotus sūtras do not make clear the mutual possession of the Ten Realms, those who adhere to these sūtras must reject the nine realms in order to become Buddhas. For they do not understand that the nine realms are included in the realm of Buddhas. Therefore, they claim that living beings cannot become Buddhas until evil passions and delusions are eliminated. This is because the truth that the characteristics of ordinary people are included in a Buddha is not preached. Consequently, they maintain that getting rid of the characteristics of human beings, heavenly beings, and evil people must be accomplished first in order to become Buddhas. Grand Master Miao-lê called this “the Buddhahood sought by rejecting and avoiding the delusions of the nine realms.” Those who believe in the pre-Lotus sūtras see the Buddhas that appear in front of them as beings of the nine realms. They believe this is due to the mysterious and divine powers of the Buddhas because they do not understand that the Buddhas naturally possess the nine realms.

Ichidai Shōgyō Tai-I, Outline of All the Holy Teachings of the Buddha, Writings of Nichiren Shōnin, Doctrine 3, Page 91-92