大般涅槃經義記 4.68

4.68

第三段中，明諸凡夫於聖滅後，外道法中安心住意，名「於他家寄臥止宿」。昏闇心中妄說有我，名「眠夢中寱語刀刀」。

In the third section, it explains that after the sage's extinction, ordinary beings settle their minds and focus their thoughts within non-Buddhist teachings, which is called 'lodging and resting at another's house'. In their confused and darkened minds, they falsely speak of having a self, which is called 'talking in one's sleep in dreams, saying, "Sword! Sword!"'.