Day of Mentor and Disciple 

In “The Opening of the Eyes,” Nichiren Daishonin states that persecution by the ruler of the nation is certain to arise (see WND-1, 239). And in exact accord with this stern prediction, President Makiguchi, President Toda, and I all suffered persecution at the hands of the ruling authorities. This is unequivocal proof that the heritage passed on by the Daishonin—the mission of establishing the correct teaching for the peace of the land and realizing kosen-rufu— flows powerfully in the Soka Gakkai.

From The Wisdom for Creating Happiness and Peace, part 3, revised edition, p. 299

Day of Mentor and Disciple