How do you let go of attachment to things? Don't even try. It's impossible. Attachment to things drops away by itself when you no longer seek to find yourself in them. In the meantime, just be aware of your attachment to things. Sometimes you may not know that you are attached to something, which is to say, identified, until you lose it or there is the threat of loss. If you then become upset, anxious, and so on, it means you are attached. If you are aware that you are identified with a thing, the identification is no longer total.

Eckhart Tolle

from A New Earth: Awakening to Your Life's Purpose