Nichiren Daishonin states in “Reply to Lord Soya”:
(Another title: The Crucial Elements for Attaining Enlightenment)
The path to Buddhahood exists only within the two principles of objective reality (kyō) and subjective wisdom (chi). Objective reality refers to the entity of all phenomena in the universe, and subjective wisdom signifies the manifestation of this entity in the life of an individual. Thus, when the reality is boundless and deep, the wisdom, like water, will flow forth ceaselessly. When one achieves the fusion of reality and wisdom, he will attain enlightenment in his present form.