The Lotus School … is based on the most truthful words of all teachings of the Buddha. Not only does the Lotus Sūtra consist of true words but also provisional sūtras preached by the Buddha during His lifetime, upon flowing into the great ocean of the Lotus Sūtra, are all converted to the sūtra of the true words by the power of the Lotus Sūtra. Let alone the daimoku of the Lotus Sūtra. This is like the power of face powder which makes lacquer as white as snow or Mt. Sumeru, which makes the color of the various birds approaching it all golden. Likewise, those who uphold the daimoku of the Lotus Sūtra can change the black (evil) karma, which they committed in this life or during the numerous kalpa (aeons) in the past, into white (good) great karma, not to speak of the meritorious good acts performed in the past since the eternal past, which will all be changed to golden-colored.

Myōhō-ama Gozen Gohenji, A Reply to My Lady, the Nun Myōhō, Writings of Nichiren Shōnin, Faith and Practice, Volume 4, Page 142