釋禪波羅蜜次第法門 6.149

6.149

答曰：非想有四陰共成，豈得言無？但凡夫人入此定中，陰、界、入細故不覺，謂言無想。佛法中說有四陰共成，但因其本名，故言非有想非無想。亦有解言：約凡夫說，言非有想；約佛法中說，言非無想；合而論之，故言非有想非無想也。

Answer: Neither-perception is constituted by the four aggregates together; how could one say it does not exist? However, when ordinary persons enter this absorption, because the aggregates, realms, and bases are subtle, they do not perceive them and consider it to be non-perception. In the Buddhadharma, it is taught that it is constituted by the four aggregates together; it is only based on its conventional name that it is called 'neither having perception nor non-perception.' Another explanation also says: spoken in terms of ordinary persons, it is called 'not having perception'; spoken in terms of the Buddhadharma, it is called 'not non-perception'; discussing them together, it is therefore called 'neither having perception nor non-perception.'