Do you truly know what is positive and what is negative? Do you have the total picture? There have been many people for whom limitation, failure, loss, illness, or pain in whatever form turned out to be their greatest teacher. It taught them to let go of false self-images and superficial ego-dictated goals and desires. It gave them depth, humility, and compassion. It made them more real.

Eckhart Tolle

from The Power of Now: A Guide to Spiritual Enlightenment