The growth of the worst kind of evil is an omen of great virtue. Therefore, when we witness the entire Jambudvīpa (whole world) filled with evil and confusion to the same extent we can expect to see the dissemination of the Lotus Sūtra throughout the world.
Chie Bōkoku Gosho, Evil Wisdom Destroying the Country, Writings of Nichiren Shōnin, Volume 7, Followers II, Page 87