..续本文上一页in which they are to be taken up, the body is generally taken first as the basic sphere of contemplation; the others come into view later, when mindfulness has gained in strength and clarity. Limitations of space do not allow for a complete explanation of all four foundations. Here we have to settle for a brief synopsis.

　　(1) Contemplation of the Body (kayanupassana)

　　The Buddha begins his exposition of the body with contemplation of the mindfulness of breathing (anapanasati). Though not required as a starting point for meditation, in actual practice mindfulness of breathing usually serves as the "root meditation subject" (mulakammatthana), the foundation for the entire course of contemplation. It would be a mistake, however, to consider this subject merely an exercise for neophytes. By itself mindfulness of breathing can lead to all the stages of the path culminating in full awakening. In fact it was this meditation subject that the Buddha used on the night of his own enlightenment. He also reverted to it throughout the years during his solitary retreats, and constantly recommended it to the monks, praising it as "peaceful and sublime, an unadulterated blissful abiding, which banishes at once and stills evil unwholesome thoughts as soon as they arise" (MN 118).

　　Mindfulness of breathing can function so effectively as a subject of meditation because it works with a process that is always available to us, the process of respiration. What it does to turn this process into a basis for meditation is simply to bring it into the range of awareness by making the breath an object of observation. The meditation requires no special intellectual sophistication, only awareness of the breath. One merely breathes naturally through the nostrils keeping the breath in mind at the contact point around the nostrils or upper lip, where the sensation of breath can be felt as the air moves in and out. There should be no attempt to control the breath or to force it into predetermined rhythms, only a mindful contemplation of the natural process of breathing in and out. The awareness of breath cuts through the complexities of discursive thinking, rescues us from pointless wandering in the labyrinth of vain imaginings, and grounds us solidly in the present. For whenever we become aware of breathing, really aware of it, we can be aware of it only in the present, never in the past or the future.

　　The Buddha”s exposition of mindfulness of breathing involves four basic steps. The first two (which are not necessarily sequential) require that a long inhalation or exhalation be noted as it occurs, and that a short inhalation or exhalation be noted as it occurs. One simply observes the breath moving in and out, observing it as closely as possible, noting whether the breath is long or short. As mindfulness grows sharper, the breath can be followed through the entire course of its movement, from the beginning of an inhalation through its intermediary stages to its end, then from the beginning of an exhalation through its intermediary stages to its end. This third step is called "clearly perceiving the entire (breath) body." The fourth step, "calming the bodily function," involves a progressive quieting down of the breath and its associated bodily functions until they become extremely fine and subtle. Beyond these four basic steps lie more advanced practices which direct mindfulness of breathing towards deep concentration and insight.[54]

　　Another practice in the contemplation of the body, which extends meditation outwards from the confines of a single fixed position, is mindfulness of the postures. The body can assume four basic postures -- walking, standing, sitting, and lying down -- and a variety of other positions marking the change from one posture to…

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