Buddhism regards all colors, all fragrances, all inanimate and living things—birds, beasts, humans, and flowers, every blade of grass and tree—all the varied and beautiful phenomena in the universe without exception, as manifestations of the Buddha nature.
The Lotus Sutra is the king of sutras, true and correct in both word and principle. Its words are the ultimate reality, and this reality is the Mystic Law (myōhō). It is called the Mystic Law because it reveals the principle of the mutually inclusive relationship of a single moment of life and all phenomena. That is why this sutra is the wisdom of all Buddhas.
The point where Buddhism radically departs from the thought and religion that had existed previously is that it uncovered within the individual’s own life the “Law,” or limitless inner power, for resolving all suffering on the most essential level. Buddhism is a teaching of unparalleled humanism that believes in the boundless potential within human beings.
It is the same with a Buddha and an ordinary being. When deluded, one is called an ordinary being, but when enlightened, one is called a Buddha. This is similar to a tarnished mirror that will shine like a jewel when polished. A mind now clouded by the illusions of the innate darkness of life is like a tarnished mirror, but when polished, it is sure to become like a clear mirror, reflecting the essential nature of phenomena and the true aspect of reality. Arouse deep faith, and diligently polish your mirror day and night. How should you polish it? Only by chanting Nam-myoho-renge-kyo.