There isn’t anything that happens that can’t teach us something, that can’t be turned into something positive. One can’t undo what’s been done, but one can use it creatively…. The only thing is to accept, and let the scar heal. Scar tissue is the strongest tissue in the body…. So, I shouldn’t be surprised if it’s the strongest part of the soul.
— Madeleine L’Engle, A House Like a Lotus, quoted by Carole F. Chase in Glimpses of Grace, p. 271