It is said that one of the reasons Toki Jonin went to so much trouble traveling all over Japan to collect Nichiren Shonin’s writings and letters was not only to preserve them, but preserve them from being eaten. Much like Nichiren Shonin writing the Odaimoku on the rough sea waters for safe passage on his way to exile in Sado, followers of that time revered his words of the Lotus Sutra teachings so much they believed the kanji characters had special protective and healing powers. They would cut out pieces and eat them.
You can find this today in traditional cures or with Kito blessings, some temple give packets that contain tiny slips of flat edible paper like substance with handwritten Odaimoku on it. Followers take them with tea or water as part of the healing. You can also see it in various protective amulets for people or buildings or even farmers’ fields.
The Buddhist history invoking the power of written sutras is long and varied, but the distinctive Ippen Shudai (Odaimoku Mandala) created by Nichiren Shonin has a special power and style found nowhere else. But the power is not in the object, the paper, the calligraphy, or the priest’s hand. Ultimately, it is the power of the Lotus Sutra expounded by Shakyamuni Buddha transmitted to our eyes and our minds from the heart and mind of Nichiren Shonin.