The Sūtra of Infinite Meaning states: “The Buddha has been preaching various teachings through expedient means in order to lead all the people to the True Dharma. For forty years or so till today – (three weeks for preaching the Flower Garland Sūtra, 12 years for the Āgama sūtras, 30 years for the Hōdō sūtras and the Wisdom Sūtra, totaling 42 years; the Treatise on the Dharma World, too, states 42 years) – the truth has not been revealed” (in chapter 2, “Preaching”). The sūtra also preaches: “By means of the pre-Lotus sūtras, one will never attain supreme Buddhahood no matter how long one practices his training. Why? Because the great direct way to enlightenment is not preached in those sūtras, hence one encounters many difficulties in walking in steep and dangerous ways” (chapter 3, “Ten Merits”). It further preaches, “There is no suffering in practicing the great direct way” (chapter 3, “Ten Merits”).

Ichidai Goji Keizu, Genealogical Chart of the Buddha’s Lifetime Teachings in Five Periods, Writings of Nichiren Shōnin, Doctrine 3, Page 242