As stated in the seventh chapter, “The Parable of a Magic City,” when the Great Universal Wisdom Buddha was a king, Śākyamuni Buddha, his sixteenth prince, sowed the seed of Buddhahood in the people. With the help of the pre-Lotus sūtras, such as the Flower Garland Sūtra, some were able to attain enlightenment afterwards by germinating the seed planted at the time of the Great Universal Wisdom Buddha, cultivating it to maturity to bear fruit. This, however, is not the true intent of the Buddha. Just as a poison might show its effect on some people without their knowledge, only in certain people does the seed of Buddhahood have a chance to germinate and grow to maturity without the help of the Lotus Sūtra. The aim of Śākyamuni Buddha to be born in this world was to gradually lead the two kinds of Hinayāna sages called Two Vehicles (śrāvaka and pratyekabuddha) and ordinary people to the Lotus Sūtra, by the way of the pre-Lotus sūtras, whereby the seed may germinate and grow to bear the fruit of Buddhahood.

Kanjin Honzon-shō, A Treatise Revealing the Spiritual Contemplation and the Most Verable One, Writings of Nichiren Shōnin, Doctrine 2, Page 151