[T]he Lotus Sūtra is likened to the sun. The moon appearing at night with twinkling stars cannot put out the starlight although the moonlight is stronger. During the day, on the contrary, sunlight extinguishes not only starlight but also moonlight. Likewise, pre-Lotus sūtras are like the stars and the theoretical section of the Lotus Sūtra is like the moon whereas the “Life Span of the Buddha” chapter of the Lotus Sūtra is like the sun. Seen from the standpoint of the “Life Span of the Buddha” chapter, even the theoretical section is like the moon, which is not comparable to the sun, not to speak of other sūtras. People cannot work at night with either starlight or moonlight. When day breaks and the sun rises, people begin to work. Likewise, in the pre-Lotus sūtras and in the theoretical section of the Lotus Sūtra, as at night, nobody can cut the chain of life and death to attain enlightenment no matter how hard one tries. On the contrary, in the “Life Span of the Buddha” chapter in the essential section of the Lotus Sūtra, like the sun rising at daybreak, everyone necessarily gets rid of the chain of life and death to attain enlightenment.

Yakuō-bon Tokui-shō, The Essence of the “Medicine King Bodhisattva” Chapter, Writings of Nichiren Shōnin, Faith and Practice, Volume 4, Page 32