You can work to achieve a goal without having an emotional attachment to
the outcome. That's the point, enjoy the process, don't strive for an
outcome. To pick up on Tenzo's weight loss example... By striving to
loose 10 lbs by a certain date, you are setting yourself for sadness. If
you don't reach the goal, then you are sad because of your failure, if
you do reach the goal, then you are left with an empty "what now"
feeling (or worse, a greedy feeling of conceit.) Being overweight means
you aren't eating right, instead of striving to loose weight, learn to
enjoy eating healthy and don't attach so much emotional significance to
your exact weight...