Nichiren writes this letter to nudge further the Lay monk and his wife from Ichinosawa to Lotus Sutra practice. This was the residence where Nichiren was transferred in exile on Sado Island. The family was sympathetic to Nichiren but feared repercussions from their local society if they proclaimed their devotion to Lotus as theirs was a society, like all of Japan, steeped in the practice of Amida worship (Nembutsu).