The Gohonzon in terms of the person, Shakyamuni Buddha of the Lifespan Chapter of the Lotus Sutra

 "Since Sakyamuni Buddha is eternal and all other Buddhas in the universe are his manifestations, then those great bodhisattvas converted by manifested Buddhas are also disciples of Lord Sakyamuni Buddha. If the "Life Span of the Buddha" chapter had not been expounded, it would be like the sky without the sun and moon, a country without a king, mountains and rivers without gems, or a man without a soul. nevertheless, seemingly knowledgeable men of such provisional schools of Buddhism as Ch'eng-kuan of the Hua-yen, Chia-hsiang of the San-lun, Tz'u-en of the Fa-hsiang, and Kobo of the shingon tried to extoltheir own canons by stating: "The Lord of the Flower Garland Sutra represents the reward-body (hojin) of the Buddha wheras that of the Lotus Sutra the accomodative body (ojin);" or "the Buddha in the sixteenth chapter of the Lotus is an Illusion; it is the great Sun Buddha who is enlightened." clouds cover the moon and slanderers hide wise men. When people slander, ordinary yellow rocks appear to be of gold and slanderers seem to be wise. Scholars in this age of decay, blinded by slanderous words, do not see the value of a gold in the "Lifespan of the Buddha" chapter. Even among men of the Tendai school some are fooled into taking a yellow rock for gold. They should know that if Sakyamuni had not been the Eternal Buddha, there could not have been so many who received GUIDANCE from Him. " -- Kaimoku Sho p. 27 Translated by Kyotsu Hori, 1992 

"Now , when the Eternal Buddha was revealed in the essential section of the Lotus Sutra, this world of endurance (Saha-world) became the Eternal Pure Land, indestructible even by the three calamities of conflagration, flooding, and strong winds, which are said to destroy the world. It transcends the four periods of cosmic change: the kalpa of construction, continuance, destruction and emptiness. Sakyamuni Buddha, the Lord-preacher of this pure land, has never died in the past, nor will He be born in the future. He exists forever throughout the past present and future. All those who receive His GUIDANCE are one with this Eternal Buddha." -- Kanjin Honzon-Sho (NOPPA) page 94 

In conclusion:

Nichiren also writes in the Opening of the Eyes:

“Thus, in the various sutras other than the Lotus Sutra, Shakyamuni does not assemble those Buddhas who carry out different austerities and practices and who possess the three bodies nor does he identify them as emanations of himself. Only in the Hoto chapter of the Lotus Sutra does he do so. This chapter then, is intended as an introduction to the Juryo chapter that follows later. Shakyamuni Buddha who was believed to have attained enlightenment for the first time only some forty and more years previously, calls together Buddhas who had become enlightened as long ago as one or even ten kalpas in the past, and declares that they are emanations of himself. This is a far cry indeed from the Buddha’s usual preaching on the equality of all Buddhas [in their Dharma bodies], and in fact a cause of great astonishment. If Shakyamuni had attained enlightenment for the first time only some forty years earlier, there could hardly have been so many beings in the ten directions who had received his instruction. And even if he was privileged to possess emanations, there would have been no benefit in his showing them to his listeners. T’ien-t’ai, describing what went on in the astonished minds of the assembly, stated: “It was evident to them that Shakyamuni Buddha possessed numerous emanations. Therefore, they understood that he must have attained enlightenment in the far distant past.”

I have collected 98 additional passages of proof but it is difficult to save those who are deaf to the teachings of this Sutra and Nichiren.

Question: What is the Meaning of Original Buddha or Original Teacher?

Answer: Original Teacher means that no matter how eminent, wise, or knowledgeable one may be, no matter how diligent one is in carrying out the Six Paramitas (Six Perfections), and no matter how long one practices the Six Paramitas, there is no way that one could come up with "Myoho renge kyo" independently of Shakyamuni Buddha. Shakyamuni Buddha, in the history of the universe, was the one unique individual capable of doing so. Nichiren realized this, taught this, and reverenced Shakyamuni Buddha for His astronomical feat of autonomous self-practice. That is why He, rather than any other individual, is revered as the person of the Gohonzon (Ninpo-Ika or Oneness of Person and Law).

We owe our very Enlightenment to this Buddha and this Buddha alone. The arrogance of those who misconstrue Shakyamuni Buddha’s and Nichiren Daishonin’s words for their own aggrandizement is cause to fall into the Lower Worlds and to remain there for a very long time. How can one follow someone who is so blind to the manifest reality that someone had to give them the Five Characters that they pay homage to? Daisaku Ikeda didn’t come up with the formula Myoho renge kyo and the High Priest of Nichiren Shoshu didn’t come up with this formula. Even Nichiren Daishonin didn’t realize and expound the Lotus Sutra in the infinite past. It was Shakyamuni Buddha who taught Nichiren Daishonin and the other Bodhisattvas of the Earth the Lotus Sutra in the remote past. It was Eternal Shakyamuni Buddha who planted the seed of Myoho renge kyo in our Buddha-nature, the seed that, when watered with a correct faith and practice, grows into the magnificent tree of the Supreme Enlightenment of Myoho.

Nichiren teaches:

“Answer: ‘One: Japan and so on to the whole of Jambudvipa should uniformly take the Master of teachings Lord Shakya of the Original Doctrine as the Object of Worship.” — Repaying Debts of Gratitude

This is the Great Secret Law of the Object of Worship. The Great Secret Law of the Invocation is Namu Myoho renge kyo. The Third Secret Law is that of the High Sanctuary which I will leave for the moment. A chair can not stand on two legs. SGI arbitrarily throws out the Great Secret Law of the Object of Worship of Shakyamuni of the Juryo Chapter of the Lotus Sutra because it grates on their sensibilities. You should admit that Ikeda has created a new religion.

We preserve Nichiren Daishonin’s religion for those who wish to practice his way and we could give a damn what others believe and teach. Change the teachings and we will attack you with everything at our disposal. Start your own religion, as the Soka Gakkai and the Nichiren Shoshu, and we will admonish you with every fiber of our being.

Unity for the sake of unity, at what expense? Certainly not at the expense of the purity and preservation of the teachings. In the future, many will recognize how, The Succession is Through the Scrolls of the Sutra (Gohonzon, Lotus Sutra and authentic writings of Nichiren). The scriptures perfectly fit the capacity of the people. One thousand out of one thousand people will come to experience the four virtues of Eternity, Joy, True Self, and Purity by chanting the Daimoku and studying the Lotus Sutra and authentic writings of Nichiren. Ikeda’s and Nichiren Shoshu's false teachings will fall by the wayside since they are not based on the Enlightenment of the Buddha and Nichiren.