成唯識論演祕 7.198

7.198

釋曰：初性世間智不覺悟，名為「細」也。依他之中，如心、心等常現前故，故名為「麁」。圓成實性，一切異生皆不達故，名為「極細」；二乘聖者猶未了故，名為「極細」。「見」者，初見。「了」者，後了。又云：一是無體能轉有體，一是有體轉有無體，一是有體而非能轉。

The commentary states: The first nature is not awakened to by worldly wisdom, hence it is termed 'subtle.' Within the paratantra, because mind, mental factors, and the like are constantly manifest, it is therefore termed 'coarse.' Because all ordinary beings fail to penetrate the pariniṣpanna-svabhāva, it is termed 'extremely subtle'; because the noble ones of the two vehicles have still not fully comprehended it, it is termed 'extremely subtle.' 'To see' refers to initial seeing. 'To comprehend' refers to subsequent comprehension. It is also said: 'One is devoid of substance yet able to transform what has substance; one has substance and transforms what has and lacks substance; one has substance yet is not able to transform.'