" You have had many and great sadnesses, which passed. And you say that even this passing was hard for you and put you out of sorts. But, please, consider whether these great sadnesses have not rather gone right through the center of yourself? Whether much in you has not altered, whether you have not somewhere, at some point of your being, undergone a change when you were sad? "

― Rainer Maria Rilke , Letters to a Young Poet