In my culture, we believe that when you die, your spirit has to climb a mountain carrying the souls of everyone you wronged in your lifetime. Imagine the weight I will have to lift. The monsters I created, the people they killed…. Can you see now why I fear death? You want to hand me over, there’s no shame in that. But you won’t. We all carry our prisons with us. Mine is my past. Yours is your morality.
-Kahler-Jex, Doctor Who Series 7: A Town Called Mercy