According to Buddhist sūtras, the Buddha’s tongue is as grand as to cover His whole face, as expansive as to cover the triple thousand worlds, and as lengthy as to reach the Summit Heaven in the Region of Form. It is a mark of physical excellence showing that the Buddha has never uttered a false word ever since the eternal past. Therefore, it is preached in a certain sūtra, “There exists no falsehood in the words of the Buddha even if Mt. Sumeru crumbles or if the earth is overturned.” This means that there is never a mistake in the words of the Buddha even if the sun rises in the west or the ebb and flow of the tide in an ocean stop, does it not? Moreover, the superiority of the Lotus Sūtra over various other sūtras has been confirmed by the words of the Buddha of Many Treasures, and the long tongues of other Buddhas touching the Brahma Heaven. There must not be any mistake in the sūtra, not even one written character or one stroke of a character.

Ueno-dono Gohenji, Reply to Lord Ueno, Writings of Nichiren Shōnin, Volume 7, Followers II, Page 4

In ancient China a man called Hung-yen, a retainer of the Duke of Yee of Wei state, cut open his own stomach and inserted his slain lord’s liver inside him before he died. Similarly, a man called Yü-jang tried to repay his indebtedness to his Lord Chih-pai by swallowing a sword and killing himself. These were cases in the secular world of repaying a minor debt of kindness, to what lengths should one go to repay the debt to the Buddha?

The reason why we continue to transmigrate through the six lower realms without attaining Buddhahood from the eternal past of innumerable kalpa (aeons) till today is that we fail to give up our lives for the sake of the Lotus Sūtra. Gladly Seen Bodhisattva burned himself for 1,200 years as a votive light to the Sun Moon Pure Bright Virtue Buddha and burned his arms for 72,000 years to the Lotus Sūtra. He is Medicine King Bodhisattva today. Never Despising Bodhisattva was abused, disparaged, beaten with sticks and rubble was thrown at him for many kalpa (aeons) in order to disseminate the teaching of the Lotus Sūtra. Did he not become Śākyamuni Buddha in a future existence? Therefore, the way of practicing the sūtra leading to Buddhahood differs according to the times.

Inchinosawa Nyūdō Gosho, A Letter to Lay Priest Ichinosawa, Writings of Nichiren Shōnin, Volume 6, Followers I, Pages 164-165

How can we identify the sage of the Lotus Sūtra in the Latter Age of Degeneration? The Lotus Sūtra states, “He who preaches this sūtra to others and can uphold it for himself is a messenger of the Buddha.” In other words, anyone who recites eight chapters of the Lotus Sūtra, or one fascicle, one chapter, or just a verse of it, or chants the daimoku is a messenger of the Buddha. He who carries through faith in the Lotus Sūtra to the end, enduring the great persecutions that arise, is the true messenger of the Buddha.

Shijō Kingo-dono Gohenji, Response to Lord Shijō Kingo, Writings of Nichiren Shōnin, Followers I, Volume 6, Page 155

There are many people who put faith in the teaching of the Lotus Sūtra. Yet as I often experience great difficulties, both public and private, some change their faith after a year or two, even becoming my enemies who shoot arrows at me. Some only outwardly appear to be believers of the Lotus Sūtra, while others believe in the Lotus Sūtra in heart but not in practice.

Śākyamuni Buddha, was the legitimate son of King Śuddhodana, a great king who governed the entire continent of Jambudvīpa, and all of its 84,210 countries. The kings in Jambudvīpa all submitted to King Śuddhodana, and he had an innumerable number of domestic servants. Nevertheless, Śākyamuni, at the age of 19, left the palace of King Śuddhodana and entered Mt. Daṇḍaloka, where he spent 12 years practicing asceticism. He was then accompanied by only five men: Ājñāta-Kauṇḍinya, Aśvajit, Bhadrika, Dasābala-Kāśyapa and Mahānāman, two of whom left him in the sixth year and the remaining three also deserted him during the last six years. In the end he continued his training alone until he attained Buddhahood. The Lotus Sūtra is harder than this to have faith in. Therefore, the sūtra itself preaches that it is “difficult to put faith in and difficult to understand.” It is also preached in the sūtra (“The Teacher of the Dharma” chapter) that the great difficulties that abound today in the Latter Age of Degeneration surpass those that occurred during the lifetime of the Buddha. Therefore, the practicer of this sūtra who perseveres through the adversities today acquires more merit than giving alms to the Buddha over the course of a kalpa.

Shijō Kingo-dono Gohenji, Response to Lord Shijō Kingo, Writings of Nichiren Shōnin, Followers I, Volume 6, Page 154

Śāriputra, Maudgalyāyana, and Kāśyapa, who perceived the doctrine of “no birth and no death” of all phenomena and became bodhisattvas without “falling back,” declined to propagate the Lotus Sūtra in the Sahā World during the Latter Age of Degeneration because the difficulty was too much for them to endure. Even those who gained the three supernatural types of knowledge and six supernatural powers and rose to the ranks of shoji and shojū (entered the rank of sagehood) and gained arhatship by practicing the Lotus Sūtra declined to do so. How then can ordinary people in the Latter Age of Degeneration, incapable of extinguishing the three delusions, become practicers of the Lotus Sūtra?

Shijō Kingo-dono Gohenji, Response to Lord Shijō Kingo, Writings of Nichiren Shōnin, Followers I, Volume 6, Page 144

Moreover, the “3,000 existences contained in one thought” doctrine is based on the three realms of existence: the realm of living beings, the realm of five components, and the realm of environment. Putting aside the first two realms for now, the third realm of environment includes trees and plants. The five colors of paint are made of trees and plants and therefore a portrait painted with colors of paint is made of trees and plants. Also a wooden statue is made of wood. It is the power of the Lotus Sūtra that inspires a soul into these portraits and wooden statues. This is based on the “3,000 existences contained in one thought” doctrine perceived by Grand Master T’ien-t’ai. Applied to living beings, this doctrine means the “attainment of Buddhahood with one’s present body. ” Applied to the portraits and wooden statues, it means the “attainment of Buddhahood by trees and plants.”

Applauding the doctrine of T’ien-t’ai expounded in his Great Concentration and Insight, Grand Master Chang-an states, “The doctrine of ‘tranquility and contemplation’ has never been made as clear as this,” while Grand Master Miao-lê states in his Annotations on the Great Concentration and Insight, “Preaching that insentient beings such as trees and plants possess the Buddha-nature, T’ien-t’ai startled the people.” This doctrine of “3,000 existences contained in one thought” had never appeared before T’ien-t’ai nor was it to appear again. If it did appear later, it must have been plagiarized from his doctrine.

Shijō Kingo Shakabutsu Kuyō, Opening the Eyes Service of Shijō Kingo’s Satue of Śākyamuni Buddha, Writings of Nichiren Shōnin, Volume 6, Followers I, Pages 132

This doctrine of “five kinds of eyes” and “three bodies of a Buddha” cannot be found anywhere except in the Lotus Sūtra. Therefore, Grand Master T’ien-t’ai states in his Words and Phrases of the Lotus Sūtra, fascicle 9, “A Buddha has been equipped with the ‘three bodies’ always throughout the past, present, and future existences, but the Buddha concealed it in various sūtras except the Lotus Sūtra.” In this interpretation, “various sūtras” refer to not only the Flower Garland Sūtra, the Hōdō sūtras, and the Wisdom Sūtra but also all the sūtras except the Lotus Sūtra. “The Buddha concealed it” means Lord Śākyamuni Buddha did not expound it anywhere except in the “Lifespan of the Buddha” chapter of the Lotus Sūtra. Therefore, the opening the eyes service for a Buddhist portrait or statue must be performed with the Lotus Sūtra by the Tendai (T’ien-t’ai) School of Buddhism.

Shijō Kingo Shakabutsu Kuyō-ji, Opening the Eyes Service of Shijō Kingo’s Statue of Śākyamuni, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 133-134

Regarding the threefold body of a Buddha, the Sūtra of Meditation on the Universal Sage Bodhisattva preaches:

“The three kinds of body which a Buddha possesses is expounded in Mahāyāna Buddhism. In particular, the Lotus Sūtra is equipped with all the teachings just as an ocean accepts all the waters. From this ocean (of the Lotus Sūtra) three pure bodies of a Buddha are born. These three bodies of a Buddha are the fields where human and heavenly beings can plant the merit of good deeds, and they are the most superior of accepting offerings from human and heavenly beings.”

The three bodies of a Buddha are (1) Dharma Body, (2) Reward Body, and (3) Accommodative Body. Each Buddha inevitably is equipped with these three. If we compare them to the moon, the Dharma Body is the moon’s body, the Reward Body is the moonlight, and the Accommodative Body is the shadow of the moon. As one body of the moon has three sides, each Buddha has the virtue of three Buddhas.

Shijō Kingo Shakabutsu Kuyō-ji, Opening the Eyes Service of Shijō Kingo’s Statue of Śākyamuni, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 133

Regarding the “opening the eyes” of Buddhist statues, it is preached in the Sūtra of Meditation on the Universal Sage Bodhisattva, “This Mahāyāna sūtra is the treasure-house of various Buddhas and the eyes of the numerous Buddhas in all the worlds throughout the universe in the past, present, and future lives.” The sūtra also states, “This Mahāyāna sūtra is the eyes of various Buddhas. They were able to have the five kinds of eyes by virtue of this sūtra.” The five kinds of eyes mentioned in this sūtra are: (1) human-eyes, (2) divine-eye, (3) wisdom eye, (4) dharma-eye, and (5) Buddha-eye. These five kinds of eyes are naturally acquired by those who uphold the Lotus Sūtra. This is like the people in a country who naturally follow whomever becomes the king, and fish in an ocean naturally obey the lord of the ocean. The pre-Lotus sūtras such as the Flower Garland Sūtra, the Āgama sūtras, the Wisdom Sūtra, and the Great Sun Buddha Sūtra may have the name of the “five kinds of eyes” but not in reality. On the contrary, the Lotus Sūtra has them both in name and reality. Even if there is no name it is necessarily included in reality.

Shijō Kingo Shakabutsu Kuyō-ji, Opening the Eyes Service of Shijō Kingo’s Statue of Śākyamuni, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 133

As for your wife’s prayers, although she does not doubt the sūtra, I am afraid her faith in the Lotus Sūtra has not been strong enough. I have often come across people who think their faith matches what is preached in the sūtra, though this is not the case in reality. You, too, must be aware of this.

The mind of a woman can be harder to grasp than the wind in the sky. The reason why your wife’s prayers have not been answered can be likened to a strong bow with a weak bowstring or a sharp sword drawn by a coward. It is not due to the lack of power on the part of the Lotus Sūtra.

Ōshajō-ji, Town of Rājagṛha, Writings of Nichiren Shōnin, Volume 6, Followers I, Page 130