妙法蓮華經玄義 2.37

2.37

復次，六趣相表生死苦。二乘相表涅槃樂。佛界相表非生死、非涅槃，中道常樂我淨，故言佛界最是無上。復次，四道表惡，人天表善，二乘表無漏善，菩薩佛表非漏非無漏善，故佛界最為無上。復次，六道表諸有因緣生法，二乘表即空，菩薩表即假，佛表即空即假即中，故佛界最為無上。復次，四趣但表惡，不能表善。人天相但表善，亦不能表惡。二乘但表無漏，不兼善惡。佛相兼表一切相。若解佛相，即遍解一切相，是故佛界最為無上。故《賢聖集》云：「地獄中陰，但見地獄，不能知上趣。若天中陰，能知天及下。」其相表之，不名正遍知。佛相表正遍知也。佛智既遍知諸相，而經教應遍說之。

Furthermore, the marks of the six destinies indicate the suffering of samsāra. The marks of the two vehicles indicate the bliss of nirvāṇa. The marks of the buddha realm indicate neither samsāra nor nirvāṇa, but the eternity, bliss, self, and purity of the Middle Way; therefore it is said that the buddha realm is the most unsurpassed. Furthermore, the four destinies indicate evil; humans and devas indicate good; the two vehicles indicate uncontaminated good; bodhisattvas and buddhas indicate non-contaminated and non-uncontaminated good; therefore the buddha realm is the most unsurpassed. Furthermore, the six destinies indicate dharmas produced from causes and conditions in the realms of existence; the two vehicles indicate identical to emptiness; bodhisattvas indicate identical to the provisional; the Buddha indicates identical to emptiness, identical to the provisional, and identical to the middle; therefore the buddha realm is the most unsurpassed. Furthermore, the four destinies only indicate evil and cannot indicate good. The marks of humans and devas only indicate good and cannot indicate evil. The two vehicles only indicate the uncontaminated and do not combine good and evil. The marks of the Buddha combine and indicate all marks. If one understands the marks of the Buddha, one universally understands all marks; for this reason the buddha realm is the most unsurpassed. Therefore the Collection of the Worthies and Sages says: 'The intermediate existence of the hells only sees the hells and cannot know the higher destinies. The intermediate existence of devas can know devas and those below.' Their marks indicate this, which is not called correct and universal knowledge. The Buddha's marks indicate correct and universal knowledge. Since the Buddha's wisdom universally knows all marks, the scriptural teachings should preach them universally.