Srimad Bhagavatam Canto 10, Chapter 16, Text 56

SB 10.16.56

kaliya uvaca
vayam khalah sahotpattya
tamasa dirgha-manyavah
svabhavo dustyajo natha
lokanam yad asad-grahah
The serpent Kaliya said: Our very birth as a snake has made us envious, ignorant and constantly angry. O my Lord, it is so difficult for people to give up their conditioned nature, by which they identify with that which is unreal.
Srila Sanatana Gosvami points out that because of his wretched condition, Kaliya was unable to compose original prayers to the Lord, and thus he paraphrased some of the prayers offered by his wives. The word asad-graha indicates that a conditioned soul seizes upon impermanent and impure things such as his own body, the bodies of others, and other countless varieties of material sense objects. The ultimate result of such material attachment is frustration, disappointment and anguish — a fact that has now become crystal clear to the poor serpent Kaliya.
Srimad Bhagavatam Canto 10, Chapter 16, Text 55
Srimad Bhagavatam Canto 10, Chapter 16, Text 57