Nichiren’s thinking always aimed, as we have seen, to unite two opposites, and to explain either by reference to the other. This method was applied to the relation between the particular and the universal, between the world and the individual, between human nature and Buddhahood. So also with the Kingdom of Buddha. It is individual and universal at the same time; either aspect is incomplete apart from the other; individual perfection is inconceivable without the basis of the universal truth, while the universal community cannot exist apart from the spiritual enlightenment of every individual. The Kingdom means the complete working out of the harmonious relation of these two aspects of perfection — Buddhahood.