The Dai Gohonzon, a mandala inscribed with Sanskrit and Chinese characters on a plank of Japanese camphorwood, is the object of veneration for Nichiren Shoshu and Soka Gakkai; Dai means "great" or "supreme," whereas gohonzon means "object of devotion." The mandala chiefly comprises the names of numerous buddhas, bodhisattvas, Buddhist deities, and Buddhist teachers around the characters Namu Myoho Renge Kyo Nichiren written down the middle. The Dai-Gohonzon is housed at Nichiren Shoshu's head temple, Taiseki-ji.
Read more about Dai Gohonzon: Overview of The Dai-Gohonzon, Questions About The Dai Gohonzon, Nichiren, Another Dai Mandala