What is the Dai-Gohonzon?

The Dai-Gohonzon is the fundamental object of worship in Nichiren Shoshu. It was inscribed by Nichiren Daishonin on October 12, 1279. It was the purpose of his advent into this world as the True Buddha. All Gohonzons of Nichiren Shoshu are derived from the Dai-Gohonzon of the High Sanctuary of the Essential Teachings