I believe the last line is making reference to the fact that when people share their dreams (thoughts, compassion, encouragement, and happiness) with someone, it is more delicate that material things (such as the cloths of the heavans, houses, cars, gifts), because while the latter if damaged can be replaced, the former if damaged will disapper or take new form.

Alex -- just wanted to say thanks for those last four words. I had been thinking about similar things, and this pointed out something for me which I had not exactly articulated: that one of the great possibilities, but also dangers, in opening ourselves to other people is that we are never the same afterwards. We cannot just carry our great idealism and energy with us in a separate box, and try out a relationship, and then if it does not work return to the person we were before and try again. It's not only that we have less time afterwards, it's somehow, as you say, that certain things in us take on a different form.  The people we are with change us deeply and constantly. It's an influence we cannot be forever afraid of opening ourselves to, but also one has to be careful -- the person you are intimate with can affect your whole understanding of the world, your whole sense of the possibility of things, and there is energy in love which we don't really have access to any other way -- so that if a relationship is not very fulfilling, it also takes something from us in the sense of not allowing us to be open to a certain kind of creative energy. Everything in love has its effect...