One Buddha and all Buddhas

"In the case of the Lotus Sutra, however, all the sutras preached in the first forty and more years are included within this one sutra. The Buddhas of the worlds in the ten directions, who are all endowed with the three bodies, are one and all gathered there, for, as it is explained, all are emanations of the one Buddha, Shakyamuni. Therefore, this one Buddha is none other than all Buddhas, and all Buddhas are thus brought together within the two characters of myōhō." -- Nichiren