Perhaps believing she could no longer bear the consequences, World Dream had always thought of herself as very strong. Without such a strong will, she might have been utterly overwhelmed by everything that was happening. And it wasn't just her who believed this; many people around her thought the same, and indeed, she was someone with strong willpower.
Such resilient people were rare to come by, even among men, but for Dream, as a woman, to possess such strength was indeed extraordinary and fortunate. At least, it was fortunate for her. If she hadn't been lucky, even more tragic events might have occurred—but because of this, she instead believed having such a strong inner self was a wonderful thing.