So I have heard. At one time the Buddha was staying near Rājagaha, on the Vulture’s Peak Mountain. Then Prince Abhaya went up to the Buddha, bowed, sat down to one side, and said to him: “Sir, Pūraṇa Kassapa says this: ‘There is no cause or reason for not knowing and not seeing. Not knowing and not seeing have no cause or reason. There is no cause or reason for knowing and seeing. Knowing and seeing have no cause or reason.’ What does the Buddha say about this?” “Prince, there are causes and reasons for not knowing and not seeing. Not knowing and not seeing have causes and reasons. There are causes and reasons for knowing and seeing. Knowing and seeing have causes and reasons.”
“But sir, what is the cause and reason for not knowing and not seeing? How do not knowing and not seeing have causes and reasons?” “There’s a time when the heart is overcome and mired in sensual desire, without truly knowing and seeing the escape from sensual desire that has arisen. This is a cause and reason for not knowing and not seeing. And this is how not knowing and not seeing have causes and reasons.
Furthermore, there’s a time when the heart is overcome and mired in ill will … dullness and drowsiness … restlessness and remorse … doubt, without truly knowing and seeing the escape from doubt that has arisen. This is a cause and reason for not knowing and not seeing. And this is how not knowing and not seeing have causes and reasons.”