Close your eyes, lean back in your chair, and relax your muscles. Completely relax your eyes. It is very important that your eyelids be relaxed. There should be no tension around your eyeballs. Do not apply any force or tension anywhere. Relax your facial muscles, shoulders, and arms. Relax your abdomen and put your hands in your lap. If you feel the weight of your body, bring that sensation down to your seat. Do not think of anything. If thoughts come, recognize them for what they are and bring your attention to the inhaling and exhaling of your breath through your nostrils. Ignore everything. Just concentrate on your practice. Forget about your body and relax. Do not entertain doubts about whether what you are doing is useful.
The principles of this method are to relax, to be natural, and to be clear. Keep each session short, but practice frequently; each session should be no longer than three to ten minutes. If you do it longer, you will probably feel restless or fall asleep. You can use this method a few times a day; it will refresh your body and mind and eliminate some of the confusion in your daily life. Gradually you will gain the stability of body and mind that makes it possible to, eventually, enter the gate of Chan.