The Daishonin writes, “If Nichiren’s compassion is truly great and encompassing, Nam-myoho-renge-kyo will spread for ten thousand years and more, for all eternity” (WND-1, 736). He is indicating that the flow of kosen-rufu—of widespread propagation—goes on endlessly, never ceasing. Kosen-rufu is not the end point of the flow; it is the flow itself, the vibrant coursing of this living Buddhism throughout society and the world.

From The Wisdom for Creating Happiness and Peace, part 3, revised edition, p. 15