瑜伽師地論略纂 3.120

3.120

七倒中，「想倒」，以於四境所起妄想，想數為體。五十三云：謂諸愚夫無所知曉，隨無明起非理作意，於所緣境，無常等計常等，取相而轉，是名想倒，故以想為體。

Among the seven perversions, 'perversion of conception' takes as its essential nature the mental factor of conception, which is the false conceptualization that arises regarding the four objects. Fascicle 53 says: Foolish ordinary beings have no understanding; following ignorance, they give rise to improper attention (ayoniso manaskāra), and toward the objective support, they conceptualize the impermanent and so forth as permanent and so forth, grasping characteristics and operating—this is called the perversion of conception; thus it takes conception as its essential nature.