The word nichi, meaning “sun,” is reference to in the 21st chapter of the Lotus Sutra where it says: “Just as the light of the sun and moon expells all dimness and darkness; so this man, living and working in the world, drives out the darkness (illusion) of all living beings,” The word ren meaning “lotus,” is referred to in chapter 15 of the same sutra where it says: “Be not influenced by environment. Lo, the Lotus blossoms, never to be soiled by the muddy waters whence it grows.