"The “Expedient Means” chapter in volume one of the Lotus Sutra states, “The Buddhas wish to open the door of Buddha wisdom to all living beings.” This refers to the world of Buddhahood inherent in the nine worlds. The “Life Span” chapter states: “Thus, since I attained Buddhahood, an extremely long period of time has passed. My life span is an immeasurable number of asamkhya kalpas, and during that time I have constantly abided here without ever entering extinction. Good men, originally I practiced the bodhisattva way, and the life span that I acquired then has yet to come to an end but will last twice the number of years that have already passed.” Here the sutra refers to the nine worlds inherent in Buddhahood. The sutra states, “Devadatta will be called the Thus Come One Heavenly King.” This indicates that the world of hell also contains Buddhahood"
From Gosho "The Object of Devotion for Observing the Mind" (The Writings of Nichiren Daishonin Volume I, page 357)
From Gosho "The Object of Devotion for Observing the Mind" (The Writings of Nichiren Daishonin Volume I, page 357)