Most people let their suffering de-energize them, stop them, encage them. And then there are others who work even more, get resolved even more exactly because they suffer. They let their suffering be their fuel. They don’t shy away from suffering.
A point comes they start inviting suffering. They say, “Come! I want to see what remains of you. I want to see how much power you still hold over me. I want you to do your worst to me. I want to see whether I can survive you. If I can survive you, I am going past you. And if I remain scared of you, then you remain happily sitting within me. I don’t want that to happen.”