In order to see our own faces we have to look at them reflected upon a spotless mirror. Likewise, in order to see the rise and fall of a country, there is no way better than to see them reflected upon the mirror of the Buddhist dharma. As we respectfully read such Mahayana sūtras as the Sūtra of the Benevolent King, Sūtra of the Golden Splendor, Guardian Sūtra, Nirvana Sūtra, and Lotus Sūtra, it is preached that the rise and fall of a country and the life span of people in it depend on the Dharma they believe, whether they believe in the True Dharma or a false dharma. It is like water that keeps a boat afloat but also destroys it, or staple grains which nourish human bodies but often damage them. Small winds and waves would not damage large ships, but small ships can easily be destroyed by gale winds and huge waves. Unjust government, like small winds and waves, would not cause the downfall of a great country and a great man; however, there is no doubt that a false dharma in Buddhism, like gale winds and huge waves destroying small boats, will destroy a country. …

Of the spotless mirrors of the holy teachings preached in His lifetime, the Lotus Sūtra is the special divine mirror. A copper mirror can show the figure of a man but not his mind. The divine mirror of the Lotus Sūtra shows not only a man’s figure but also his mind. Not only the current mind of a man but also his karma in the previous life and his reward and retribution in the future can clearly be spotlighted.

The Lotus Sūtra, fascicle 7, the 21st chapter on “The Divine Powers of the Buddha,” preaches: “Suppose that after the Buddha passed away, someone who knows the causes and conditions and proper sequence of the sūtras expounded by the Buddha will preach them truthfully according to the true meaning. As the light of the sun and moon can eliminate all darkness, so this person will wipe out the darkness of living beings as he walks about in the world.”

This scriptural passage means that he who expounds even a word or a phrase of the Lotus Sūtra should know well the comparative profundity of the holy teachings preached during His lifetime and the sequence of preaching them. For instance, speaking of the calendar consisting of more than 360 days a year, a mistake by one day will cause mistakes for 10,000 days. In a 31-syllable Japanese poem, a mistake in a syllable or a phrase makes the whole 31 syllables unpoetic. Likewise, in reading or reciting a sūtra, if one is confused about the sequence and comparative profundity of the holy teachings of the Buddha beginning with the Flower Garland Sūtra preached first at the Hall of Enlightenment to the Nirvana Sūtra expounded last in the śāla forest, one will inevitably fall into the Hell of Incessant Suffering without committing the five rebellious sins. Those who believe in him will also fall into the Hell of Incessant Suffering.

Therefore, when a wise man appears in the world to correctly declare the comparative profundity of the holy teachings preached during His lifetime, those priests who have transmitted false doctrines from the founders of their respective sects and are revered as the teachers of the state or aristocratic families will make a false charge against the wise man to the rulers of the country or incite a popular protest against him. Otherwise, the weakness of their sects would be revealed, causing them to be despised by the people. Then, it is preached, the protective deities of Buddhism will be so enraged that they will destroy this country just as gale winds tear up the leaves of banana plants or high waves overturn small boats.

Shinkoku-ō Gosho, Sovereigns of Our Divine Land, Writings of Nichiren Shōnin, Doctrine 1, Pages 141-142

Underscore “Of the spotless mirrors of the holy teachings preached in His lifetime, the Lotus Sūtra is the special divine mirror. A copper mirror can show the figure of a man but not his mind. The divine mirror of the Lotus Sūtra shows not only a man’s figure but also his mind. Not only the current mind of a man but also his karma in the previous life and his reward and retribution in the future can clearly be spotlighted.”