維摩經疏卷第三．第六 3.49

3.49

Second, identifying the substance: the fleshly eye takes as its nature the pure faculty among humans, created from the four great elements, which is invisible, possessing resistance, and pure matter. The wisdom eye, Dharma eye, and Buddha eye—these three eyes have their substance identified as mental factors. First general, then specific. In general, the three eyes collectively take wisdom (mati/prajñā) among the determinative mental factors (viniyata-caitta) as their substance. Specifically, the wisdom eye takes fundamental non-discriminative wisdom (mūla-jñāna) as its nature; the Dharma eye takes subsequently attained wisdom (pṛṣṭhalabdha-jñāna) as its nature. Alternatively, the Dharma eye generally takes fundamental non-discriminative wisdom as its nature, because conditioning the Dharma of true principle is called the Dharma eye. If so, how does it differ from the wisdom eye? The explanation says: their derivation of names differs. Wisdom itself is the eye, deriving its name from its own substance; illuminating Dharma is called the eye, receiving its designation from the object. The Buddha eye takes effortless wisdom as its nature; or, it takes the four wisdoms, such as the great round mirror wisdom, as its substance.