This reminds me very strongly of an approach described (in a very personal way) by the Dalai Lama - when talking about sorrow and regret he says

    We have this idea that we either have it or we get rid of it and the
    question came from that point of view….But there’s an ability to be
    pierced to the heart by the sorrow of the world and your own regrets
    without it dragging you down.

http://lenski.com/dont-let-it-drag-you-down/