Sinful life (BG and SB)
Bhagavad-gita As It Is
BG Chapters 1 - 6
BG 4.31, Purport:
Whatever form of material existence one is in, one is invariably ignorant of his real situation. In other words, existence in the material world is due to the multiple reactions to our sinful lives. Ignorance is the cause of sinful life, and sinful life is the cause of one's dragging on in material existence. The human form of life is the only loophole by which one may get out of this entanglement.