The inner source of eternal, indestructible, absolute happiness is Nam-myoho-renge-kyo, which shines in the depths of your being. True happiness lies in tapping this source as you strive to cultivate your own life, which is still a work in progress. This is the essence of Buddhism.
>From The Wisdom for Creating Happiness and Peace, part 2, revised edition, p. 351

Daisaku Ikeda