People frequently ask me how does chanting Namu Myoho Renge Kyo work or how do we practice the Lotus Sutra. The Buddha gives us many clues to just what practicing the Lotus Sutra entails. Fundamentally, though, praising the Lotus Sutra is key. Think about this: You do not praise things you don’t like, at least not normally. When you praise something, you are expressing your gratitude. Modern science has done studies that show that people who are able to express gratitude increase their overall sense of well-being and happiness. This is where it starts for us as Buddhists in our practice of the Lotus Sutra.
Lecture on the Lotus Sutra