Once you sit, do not change the position again until the end of the time you determined at the beginning. Suppose you change your original position because it is uncomfortable, and assume another position. What happens after a while is that the new position becomes uncomfortable. Then you want another and after a while it, too, becomes uncomfortable. So you may go on shifting, moving, changing one position to another the whole time you are on your meditation cushion and you may not gain a deep and meaningful level of concentration. Therefore, do not change your original position, no matter how painful it is.

To avoid changing your position, determine at the beginning of meditation how long you are going to meditate. If you have never meditated before, sit motionlessly for not longer than twenty minutes. As you repeat your practice, you can increase your sitting time. The length of sitting depends on how much time you have for sitting meditation practice and how long you can sit without excruciating pain.

We should not have a time schedule to attain the goal, for our attainment depends on how we progress in our practice based on our understanding and development of our spiritual faculties. We must work diligently and mindfully toward the goal without setting any particular time schedule to reach it. When we are ready, we get there. All we have to do is to prepare ourselves for that attainment.

After sitting motionlessly, close your eyes. Our mind is analogous to a cup of muddy water. The longer you keep a cup of muddy water still, the more the mud settles down and the water will be seen clearly. Similarly, if you keep quiet without moving your body, focusing your entire undivided attention on the subject of your meditation, your mind settles down and begins to experience the bliss of meditation.

To prepare for this attainment, we should keep our mind in the present moment. The present moment is changing so fast that a casual observer does not seem to notice its existence at all. Every moment is a moment of events and no moment passes by without an event. We cannot notice a moment without noticing events taking place in that moment. Therefore, the moment we try to pay bare attention to is the present moment. Our mind goes through a series of events like a series of pictures passing through a projector. Some of these pictures are coming from our past experiences and others are our imaginations of things that we plan to do in the future. The mind can never be focused without a mental object. Therefore we must give our mind an object which is readily available every present moment. One such object is our breath.

The mind does not have to make a great effort to find the breath. Every moment the breath is flowing in and out through our nostrils. As our practice of insight meditation is taking place every waking moment, our mind finds it very easy to focus itself on the breath, for it is more conspicuous and constant than any other object.

After sitting in the manner explained earlier and having shared your loving-kindness with everybody, take three deep breaths. After taking three deep breaths, breathe normally, letting your breath flow in and out freely, effortlessly, and begin focusing your attention on the rims of your nostrils. Simply notice the feeling of breath going in and out. When one inhalation is complete and before exhaling begins, there is a brief pause. Notice it and notice the beginning of exhaling. When the exhalation is complete, there is another brief pause before inhaling begins. Notice this brief pause, too. This means that there are two brief pauses of breath—one at the end of inhaling and the other at the end of exhaling. These two pauses occur in such a brief moment you may not be aware of their occurrence. But when you are mindful, you can notice them.

Do not verbalize or conceptualize anything. Simply notice the incoming and outgoing breath without saying, “I breathe in” or “I breathe out.” When you focus your attention on the breath ignore any thought, memory, sound, smell, taste, etc., and focus your attention exclusively on the breath, nothing else.

At the beginning, both the inhalations and exhalations are short because the body and mind are not calm and relaxed. Notice the feeling of that short inhaling and short exhaling as they occur without saying, “short inhaling” or “short exhaling.” As you continue to notice the feeling of short inhaling and short exhaling, your body and mind become relatively calm. Then your breath becomes long. Notice the feeling of that long breath as it is without saying, “Long breath.” Then notice the entire breathing process from the beginning to the end. Subsequently the breath becomes subtle, and the mind and body become calmer than before. Notice this calm and peaceful feeling of your breathing.

Similarly, as you continue this exercise, your breath becomes so subtle and refined that you might not be able to notice the feeling of breath at all. When this happens do not worry. It has not disappeared. It is still where it was before—right at the nostril-tips. Take a few quick breaths and you will notice the feeling of breathing again. Continue to pay bare attention to the feeling of the touch of breath at the rims of your nostrils. As you keep your mind focused on the rims of your nostrils, you will be able to notice the sign of the development of meditation. You will feel the pleasant sensation of a sign. Different meditators experience this differently. It will be like a star, or a round gem, or a round pearl, or a cottonseed, or a peg made of heartwood, or a long string, or a wreath of flowers, or a puff of smoke, or a cobweb, or a film of cloud, or a lotus flower, or the disc of the moon, or the disc of the sun.

Earlier in your practice you had inhaling and exhaling as objects of meditation. Now you have the sign as the third object of meditation. When you focus your mind on this third object, your mind reaches a stage of concentration sufficient for your practice of insight meditation. This sign is strongly present at the rims of the nostrils. Master it and gain full control of it so that whenever you want, it should be available. Unite the mind with this sign which is available in the present moment and let the mind flow with every succeeding moment. As you pay bare attention to it, you will see that the sign itself is changing every moment. Keep your mind with the changing moments. Also, notice that your mind can be concentrated only on the present moment. This unity of the mind with the present moment is called momentary concentration. As moments are incessantly passing away one after another, the mind keeps pace with them, changing with them, appearing and disappearing with them without clinging to any of them. If we try to stop the mind at one moment, we end up in frustration because the mind cannot be held fast. It must keep up with what is happening in the new moment. As the present moment can be found any moment, every waking moment can be made a concentrated moment.

To unite the mind with the present moment, we must find something happening in that moment. However, you cannot focus your mind on every changing moment without a certain degree of concentration to keep pace with the moment. Once you gain this degree of concentration, you can use it for focusing your attention on anything you experience—the rising and falling of your abdomen, the rising and falling of the chest area, the rising and falling of any feeling, or the rising and falling of your breath or thoughts and so on.

To make any progress in insight meditation you need this kind of momentary concentration. That is all you need for the insight meditation practice because everything in your experience lives only for one moment. When you focus this concentrated state of mind on the changes taking place in your mind and body, you will notice that your breath is the physical part and that the feeling of breath, consciousness of the feeling, and the consciousness of the sign are the mental parts. As you notice them you can notice that they are changing all the time. You may have various types of sensations, other than the feeling of breathing, taking place in your body. Watch them all over your body. Don’t try to create any feeling which is not naturally present in any part of your body. But notice whatever sensation arises in the body. When thought arises notice it too. All you should notice in all these occurrences is the impermanent, unsatisfactory, and selfless nature of all your experiences whether mental or physical.

As your mindfulness develops, your resentment for the change, your dislike for the unpleasant experiences, your greed for the pleasant experiences, and the notion of selfhood will be replaced by the deeper awareness of impermanence, unsatisfactoriness, and selflessness. This knowledge of reality in your experience helps you to foster a more calm, peaceful, and mature attitude toward your life. You will see what you thought in the past to be permanent is changing with such inconceivable rapidity that even your mind cannot keep up with these changes. Somehow you will be able to notice many of the changes. You will see the subtlety of impermanence and the subtlety of selflessness. This insight will show you the way to peace, happiness, and will give you the wisdom to handle your daily problems in life.

When the mind is united with the breath flowing all the time, we will naturally be able to focus the mind on the present moment. We can notice the feeling arising from contact of breath with the rim of our nostrils. As the earth element of the air that we breathe in and out touches the earth element of our nostrils, the mind feels the flow of air in and out. The warm feeling arises at the nostrils or any other part of the body from the contact of the heat element generated by the breathing process. The feeling of impermanence of breath arises when the earth element of flowing breath touches the nostrils. Although the water element is present in the breath, the mind cannot feel it.

Also, we feel the expansion and contraction of our lungs, abdomen, and lower abdomen, as the fresh air is pumped in and out of the lungs. The expansion and contraction of the abdomen, lower abdomen and chest are parts of the universal rhythm. Everything in the universe has the same rhythm of expansion and contraction just like our breath and body. All of them are rising and falling. However, our primary concern is the rising and falling phenomena of the breath and minute parts of our minds and bodies.

Along with the inhaling breath, we experience a small degree of calmness. This little degree of calmness turns into tension if we don’t breathe out in a few moments. As we breathe out this tension is released. After breathing out, we experience discomfort if we wait too long before having fresh air brought in again. This means that every time our lungs are full we must breathe out and every time our lungs are empty we must breathe in. As we breathe in, we experience a small degree of calmness, and as we breathe out, we experience a small degree of calmness. We desire calmness and relief of tension and do not like the tension and feeling resulting from the lack of breath. We wish that the calmness would stay longer and the tension disappear more quickly than it normally does. But the tension will not go away as fast as we wish nor will the calmness stay as long as we wish. And again we get agitated or irritated, for we desire the calmness to return and stay longer and the tension to go away quickly and not to return again. Here we see how even a small degree of desire for permanency in an impermanent situation causes pain or unhappiness. Since there is no self-entity to control this situation, we will become more disappointed.

However, if we watch our breathing without desiring calmness and without resenting the tension arising from breathing in and out, and experience only the impermanence, the unsatisfactoriness, and selflessness of our breath, our mind becomes peaceful and calm.

The mind does not stay all the time with the feeling of breath. It goes to sounds, memories, emotions, perceptions, consciousness, and mental formations as well. When we experience these states, we should forget about the feeling of breath and immediately focus our attention on these states—one at a time, not all of them at one time. As they fade away, we let our mind return to the breath which is the home base the mind can return to from quick or long journeys to various states of mind and body. We must remember that all these mental journeys are made within the mind itself.

Every time the mind returns to the breath, it comes back with a deeper insight into impermanence, unsatisfactoriness, and selflessness. The mind becomes more insightful from the impartial and unbiased watching of these occurrences. The mind gains insight into the fact that this body, these feelings, the various states of consciousness, and numerous mental formations are to be used only for the purpose of gaining deeper insight into the reality of this body-mind complex.

This excerpt is from Mindfulness in Plain English by Venerable Henepola Gunaratana, reprinted with permission from Wisdom Publications, Boston.