Neither the pure land nor hell exists outside oneself; both lie only within one's own heart. Awakened to this, one is called a Buddha; deluded about it, one is called an ordinary person. The Lotus Sutra reveals this truth, and one who embraces the Lotus Sutra will realize that hell itself is the Land of Tranquil Light.
-- Nichiren Daishonin,
from the gosho "Hell is the Land of Tranquil Light"
Written to Najo Tokimitsu's mother, July 11, 1274