All the scriptures of Buddhism are characters written on pieces of paper. They look like, for instance, stars and the moon scattered in the sky or plants growing on the earth. The characters of all the scriptures of Buddhism are the spirit of Śākyamuni Buddha, namely His strength of Life.

Sokumotsu Santoku Gosho, On the Three Utilities of Food, Writings of Nichiren Shōnin, Volume 7, Followers II, Pages 178-179