大般涅槃經義記 7.170

7.170

次以空聚喻於六入，歸心六入名「投一聚」，六根是其神識依處，故名聚落。望觀六入，以免其過，名「欲自隱」。正意觀察名「入聚中」。自觀六根，求我不得，名「看諸舍都不見人」。觀他六根亦空無人，名「執瓦器悉空無物」。「既不見人、求物不得」雙牒前二。停止不進名「即坐地」。

Next, the six sense bases are allegorised by an empty settlement. Taking refuge in the six sense bases is called 'fleeing to a settlement'; the six sense faculties are the resting place of conscious spirit, which is why they are called a settlement. Looking upon and contemplating the six sense bases in order to avoid their faults is called 'wishing to hide oneself'. Contemplating with a correct mind is called 'entering into the settlement'. Contemplating one's own six sense faculties and finding no self is called 'looking into all the houses and seeing no people at all'. Contemplating others' six sense faculties as also being empty and without person is called 'holding earthenware vessels that are all empty, without any things'. 'Neither seeing people nor finding things' takes up both of the preceding two. Stopping and not advancing is called 'immediately sitting on the ground'.