In meditation, the practice of calming, resting, and dwelling happily in the present moment can be difficult at first, because our minds are always racing. The more you try to stop your racing mind, the more it resists. Mindfulness is not meant to suppress or get rid of the racing mind, but simply recognize its presence. First you need to recognize that thinking nonstop has become a strong habit for you. The easiest way to stop that habit from taking you over is to learn how to breathe in a sitting position for a short time, for just five or ten breaths. If you think you have to practice meditation for too long a period of time, there is no way you will maintain a daily practice. Instead throughout the day, use the ringing of the telephone, or the sound of your watch, or any other cue, to stop all doing and thinking for a moment. Just enjoy your breathing. Our son started sitting when he was three or four years old. He sat for ten breaths every morning. And if a little child can do that, I am sure we grown-ups can do it as well.
Nguyen Ann-Huong, Walking Meditation