In the Lotus Sūtra’s narrative, Śāriputra is the first śrāvaka to receive the Buddha’s prediction of his future buddhahood. “When Śāriputra heard this,” Nichiren wrote, “he not only cut off the illusions arising from primal ignorance and reached the stage of the true cause [for liberation] but was acclaimed as the [future] tathāgata Padmaprabha [Lotus Light]. … This was the beginning of the attainment of buddhahood by all beings of the ten realms.”

For Nichiren, … the Lotus Sūtra’s message that persons of the two lesser vehicles could attain buddhahood was not about extending this possibility to a group of previously excluded individuals but, rather, established the mutual inclusion of the ten realms as the ground that, for the first time, opened buddhahood as a real possibility to anyone.