大方廣圓覺修多羅了義經略疏 2.766

2.766

由愛故得身，若斷身即違愛。如人身縱卑陋病苦，亦自保命，終不能斷。斷餘或可，自斷誠難，認我亦爾。斷一切煩惱惡業。容有得者，欲令斷我，其可得乎？何以故？我終不能還斷我故。又有我故必不覺我，如眠不自見故。必情忘想，盡與覺一體，覺是真我，則妄我本無，方名為斷。如夢身縱令至劣至苦，夢時終不肯斷，必須覺來合於本身方嫌夢苦，復無可斷。

Because of craving, one obtains a body; if one cuts off the body, that contradicts craving. Even if a person's body is base, lowly, sick, and suffering, he still protects his own life and can never cut it off himself. Severing other things may be possible, but severing oneself is truly difficult; identifying with a self is also like this. For severing all afflictions and evil karma, there may occasionally be those who succeed; but if you wish to have them sever the self, how could that be achieved? Why is this? Because the self can never turn around to sever the self. Furthermore, because there is a self, one inevitably does not perceive the self, just as in sleep one does not see oneself. One must let emotional conceptualizations be forgotten and let them be entirely exhausted and unified into one entity with enlightenment. Enlightenment is the true self, and then the false self is fundamentally non-existent—only then is it called 'severance'. For example, even if the body in a dream is extremely inferior and wretchedly painful, while dreaming one is never willing to cut it off; one must awaken and unite with the real body before one loathes the dream's suffering, and then there is nothing left to be severed.