妙法蓮華經玄義 6.82

6.82

Moreover, across the various sūtras, the subtle is identical while the crude differs. There are two kinds of crude: first, the hard-to-transform crude; second, the easy-to-transform crude. The easy-to-transform has already become subtle in the various sūtras. As for the hard-to-transform, now in the Lotus there are no longer two crudes, but only the one subtle. There is only the one great cause and condition of the Buddha's work and never any other matter; it merely provisionally resembles the supernormal powers of the nine realms. Sentient beings themselves think it is another matter; for the Buddha, it is constantly the Buddha's work. The hired laborer thinks of himself as a base person; the elder thoroughly knows he is his son. This is the subtlety of supernormal powers in relative terms.