Once a friend sent back all the letters I had written him out of my sincere wish for his welfare. I felt sad and frustrated at the time, but now it is a fond memory of my youth. As you go through life, you will no doubt more keenly appreciate these words of the Daishonin: “Single-mindedly chant Nam-myoho-renge-kyo and urge others to do the same; that will remain as the only memory of your present life in this human world” (WND-1, 64).

From The Wisdom for Creating Happiness and Peace, part 2, revised edition, p. 242