大方廣圓覺修多羅了義經略疏 2.55

2.55

由外塵欲牽起愛心，亦由愛心貪著於欲。貪欲故造業，造業故受報，由此生死不斷。故《肇論》云：「眾生所以久流轉者，皆由著欲故也。若欲止於心，則無復生死。潛神玄默，與虛空合其德，是名涅槃。」

Because external sensory desires stimulate the mind of affection, and also because the mind of affection craves and clings to desires. Craving desire leads to creating karma; creating karma leads to receiving retribution; thus saṃsāra is unbroken. Therefore the Zhao lun says: 'The reason why sentient beings transmigrate for so long is entirely because they cling to desires. If desires cease in the mind, there will no longer be saṃsāra. Submerging the spirit in profound stillness and matching its virtue with space is called nirvāṇa.'