法華玄論 9.44

9.44

Answer: This was already explained above, but shall now be explained further. In investigating the meaning of root and trace, the root is necessarily subtle and the trace crude; yet now, taking Śākyamuni's crudeness as the root and the pure land's subtlety as the trace, one knows that Śākyamuni is no longer the root. Since Śākyamuni is no longer the root, the sixteen-foot form is not the true body. Moreover, within a single event, two meanings are jointly revealed: when Śākyamuni points to the pure land as a transformed trace, the buddha of the pure land is not the real body; and since Śākyamuni's crudeness cannot be the subtle body, one knows that Śākyamuni is also a trace. Therefore, both bodies are entirely traces, and only then does one begin to know that the utmost subtlety of the dharmakāya is the root of transformations.