The Three Secret Ordinances, which are peculiar to the Nichiren Sect, are as follow:
1. Honzon, or the Chief Object of Worship.
2. Daimoku, or the Title of the [Lotus Sutra].
3. Kaidan, or the Place for Learning Moral Precepts.
The Chief Object of Worship is a hanging chart, or scroll, called the Great Mandala. The Mandala is a symbolical representation of Sakyamuni and the Truth; it embodies them in visible form, and constitutes a focus and an epitome of the whole doctrine. In the middle of it are inscribed the characters [Na Mu Myo Ho Ren Ge Kyo]. This group of seven characters is called the Body-in-General of the Buddha, while on either side are arranged certain delineations of a pictorial nature, known as his Bodies-Separate, and representing the Ten Worlds of Living Beings.
Doctrines of Nichiren (1893)