A view of the universe based on the idea of this Original Buddha has been formulated by Nichiren scholars. The doctrine, “The Origination of the Fundamental Buddha” (hom butsu engi), is based on the Hommon part of the Hoke-kyō and maintains that the Original Buddha dwells eternally in the three periods of past, present and future; that he is identical with the three bodies (Dharmakāya, Sambhogakāya, and Nirmāṇakāya). He educates all living beings in the nine worlds and three periods, making them dwell peacefully by teaching the three benefits of sowing the seed, bringing it to ripeness and letting it reach deliverance. This Original Buddha shows his birth in non-birth, his death in non-death; since the existence of the universe depends on his virtue and mercy, it cannot exist separate from him.

Consequently, the Great Mandala represents both the kingdom of the Original Buddha and the universe that originates from the Original Buddha. Also, since all living beings are the nine worlds that originate from the Original Buddha, a belief in this fact unifies the believer with the substance of the Original Buddha.