法華玄論 1.103

1.103

Furthermore, wishing to speak of the merit of those who are transformed and the merit of the one capable of transforming, he therefore preaches this sūtra. As for the merit of those who are transformed: just as when dense clouds spread widely their moisture universally reaches everywhere, and the three kinds of medicinal herbs and two kinds of trees receive moisture according to their share; although they receive moisture according to their share they do not realize it, and those who are able to realize it are rare. The Tathāgata's compassionate body universally covers the dharmadhātu and equally moistens the five vehicles; sentient beings receive benefit according to their share without realizing it, and if any are able to realize it, they too are rare.