This habit of categorizing and judging our experience locks us into mechanical reactions that we are not even aware of and that often have no objective basis at all. These judgments tend to dominate our minds, making it difficult for us ever to find any peace within ourselves. Its as if the mind were a yo-yo, going up and down on the string of our own judging thoughts all day long. If you doubt this description of your mind, just observe how much you are preoccupied with liking and disliking, say during a ten-minute period as you go about your business.
If we are to find a more effective way of handling the stress in our lives, the first thing we will need to do is to be aware of these automatic judgments so that we can see through our own prejudices and fears and liberate ourselves from their tyranny.
Full Catastrophe Living, Jon Kabbat-Zinn PhD, pg 34