Encountering this terrible state of the nation, I, Nichiren, studied all the scriptures of Buddhism, in which I found scriptural proofs answering why various prayer services are of no avail, only intensifying disasters. Finally, I could not refrain from composing a written opinion, entitling it the “Risshō ankoku-ron (Treatise on Spreading Peace Throughout the Nation by Establishing the True Dharma).” I submitted this to the late Lay Priest Lord Saimyō-ji (Hōjō Tokiyori ) at eight o’ clock in the morning on the sixteenth day of the seventh month in the first year of the Bunnō Era (1260) through his chamberlain, Lay Priest Yadoya. It was nothing but a way for me to pay for what I owe my country.

Ankoku-ron Gokanyurai, The Reason for Submitting the “Risshō Ankoku-ron,” Writings of Nichiren Shōnin, Doctrine 1, Pages 147