維摩經玄疏 4.2

4.2

第四、約圓教明位，釋淨、無垢、稱義者，此教詮因緣即一實諦、不思議解脫、虛空佛性、大般涅槃、諸佛法界之理。若菩薩稟此教門，理雖非深非淺，而證者不無深淺之位。今明此教入道，亦具有四門，而諸大乘經多用「非空非有門」也。正如此經諸菩薩各說「入不二法門」，一往雖同，細檢不無四門之別，而多用「非空非有門」入不思議解脫也。此義在下，自當可見，就此略為三意：一，簡別、圓兩教明位不同；二，正明此教辨位；三，約圓教位，釋淨、無、垢稱義。

Fourth, explaining the meanings of Pure, Stainless, and Fame according to the stages of the perfect teaching: this teaching expounds the principle that dependent origination is identical to the one real truth, the inconceivable liberation, the sky-like buddha-nature, the great parinirvāṇa, and the realm of reality of all buddhas. If a bodhisattva receives this teaching-door, although the principle is neither deep nor shallow, those who realize it nonetheless possess stages of depth and shallowness. Now, explaining entry into the path in this teaching, it also fully possesses four doors, but the Mahāyāna sūtras mostly employ the "door of neither emptiness nor existence." Just as in this sūtra the bodhisattvas each explain "entering the dharma-door of non-duality," though provisionally the same at first glance, on close inspection there is indeed the distinction of the four doors, yet they mostly employ the "door of neither emptiness nor existence" to enter the inconceivable liberation. This meaning will naturally become apparent below. Here, there are briefly three points: first, differentiating the difference in the explanation of stages between the distinctive and perfect teachings; second, properly explaining the determination of stages in this teaching; third, explaining the meanings of Pure, Stainless, and Fame according to the stages of the perfect teaching.