There is a story told of Nichiren on his way to his second exile, his trip to Sado Island. It is said that the water was so rough that all those on board the boat feared for their lives. According to the story, Nichiren took one of the oars and with the blade wrote the Odaimoku onto the surface of the water in order to calm the sea.
Whether or not you believe this happened exactly as it is told, there is certain documentary support for believing that he actually did attempt to do this. Still, the fact of the matter is that Nichiren placed all of his faith in the power of the Lotus Sutra. We too can cast the Odaimoku upon the ocean of our suffering, and with our practice we can calm the waters. We can change ourselves so that we can safely and confidently navigate the rough seas in which we may find ourselves.
Lotus Path: Practicing the Lotus Sutra Volume 1