法華論疏 2.471

2.471

Question: Why are four explained, neither more nor less? Moreover, what sequence do these four have? Answer: First, speaking of "opening" means opening the dharmakāya of the Buddhas of the ten directions. As said before, "opening and revealing the pure and wondrous dharmakāya of the Tathāgata to cause them to give rise to faithful conviction," for this reason the first previously explained opening. Although opening the dharmakāya of the Buddhas of the ten directions, one might say that the Buddhas alone possess the dharmakāya and persons of the two vehicles lack it—that the Buddha attains Buddhahood while the two vehicles do not attain Buddhahood; for this reason it is explained that persons of the three vehicles identically possess this dharmakāya and will all identically attain Buddhahood. Although it is explained that the three vehicles identically possess the dharmakāya, persons of the two vehicles do not know the single identical dharmakāya, so it clarifies awakening to the one without a second. Having awakened to the one without a second, there is then only a forward path and no retrogressing course, and for this reason entering is explained next. These four omit no meaning, and therefore there can be neither more nor fewer. This is precisely the sequence.