It is because of our attachment to things that we suffer.
By letting go we find that we have not lost anything except our attachment.
~ Sogyal Rinpoche
I used to think that this meant cultivating indifference, now I know better. I can love things intensely and revel in them, but that's not the same as attachment. Detachment recognizes the transience of things, good and bad, and passes no judgement on it. I find it harder to let go of my hurt than anything else. I don't know why. Maybe because it validates my weirdness, I'm not sure. I have to think on it.