Based on the context and the answer, generate a question. 

Context: In the surfeit of power I was a murderer and an oppressor . In my most evil moments I was convinced that I was doing good , and I was well supplied with systematic arguments . It was only when I lay there on rotting prison straw that I sensed within myself the first stirrings of good . Gradually it was disclosed to me that the line separating good and evil passes not through states , nor between classes , nor between political parties either - but right through every human heart - and through all human hearts ... .

Answer:

The incarceration gave them time to sit in silence and reflect on their past transgressions



Why did being imprisoned prompt the speaker to reflect on and realize the true nature of morality ?