楞伽阿跋多羅寶經註解 2.94

2.94

愚夫禪言二乘、外道修者，以其所觀人無我性，不能了自心量所現自相、共相性空，併以愚夫目之。骨瑣者，即小乘所觀自他身骨瑣相連，皆是無常、苦、不淨相，對治計著，此觀為首。言相不異觀者，謂定中見相與觀不異，此觀成之相也。雖次第增進至無想定，然不離相，是名愚夫禪也。

The dhyāna of the foolish is said to be practiced by the two vehicles and tīrthikas because, in contemplating the nature of the selflessness of persons, they cannot comprehend that the svalakṣaṇa and sāmānyalakṣaṇa appearing from the measure of their own minds are empty by nature; they are lumped together and designated as 'the foolish.' 'Interconnected bones' refers to the contemplation practiced in the Hīnayāna of the chain of bones of one's own and others' bodies as being characterized by impermanence, suffering, and impurity; this contemplation is foremost as an antidote to attachment. 'Not viewing them as different from these characteristics' means that the characteristics seen in meditation are not different from the contemplation; this is the sign of the contemplation's completion. Although they gradually advance step by step to the concentration of non-conception, they do not leave characteristics behind; this is called the dhyāna of the foolish.