It is remarkable how liberating it feels to be able to see that your thoughts are just thoughts and that they are not 'you' or 'reality.' For instance, if you have the thought that you have to get a certain number of things done today and you don't recognize it as a thought but act as if it's the 'the truth,' then you have created a reality in that moment in which you really believe that those things must all be done today.
Full Catastrophe Living: Using the Wisdom of Your Body and Mind to Face Stress, Pain, and Illness (ed. Delta, 2009) - ISBN: 9780307567574