The Daishonin’s practice of shakubuku was thoroughly rooted in his immense compassion to open the eyes of people deceived by erroneous teachings and to lead them to enlightenment. Likewise, our practice of shakubuku, or sharing the Mystic Law, must accord with the Daishonin’s compassionate spirit; it must arise from our desire to lead others to happiness without fail.

From The Wisdom for Creating Happiness and Peace, part 2, revised edition, p. 257