The spine must be upright. This does not mean to
　　   thrust your chest forward, but rather to   make  sure
　　   that your lower back is
　　  
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　　   erect, not just slumped. The chin must be tucked  in
　　   a little bit. Both of these  points   together  cause
　　   you to naturally maintain a very upright spine.　　 An
　　   upright spine also means a vertical spine,　　 leaning
　　   neither forward or backward, right or left.
　　  
　　   Point Three: The Hands
　　  
　　　　  The hands form a so-called Dharma Realm  Samadhi
　　   Mudra 法界定印. The open right palm is   underneath,
　　   and the open left palm rests in the right palm.   The
　　   thumbs lightly touch  to  form   a  closed  circle or 
　　   oval. The hands are placed in  front of the  abdomen,
　　   and rest on the legs.
　　  
　　   Point Four: The Shoulders
　　  
　　　　  Let the shoulders be relaxed, the  arms  hanging
　　   loosely. There should be no sense of your shoulders,
　　   arms or hands. If you have any  sensation   of  these
　　   parts, there is probably tension in those areas.
　　  
　　   Point Five: The Tongue
　　  
　　　　　　 The tip of the tongue should be lightly
　　   touching  the roof of the mouth just behind the front
　　   teeth. If you have too much saliva, you can let go of
　　   this  connection.  If you have no saliva  at all, you
　　   can  apply  greater  pressure   with  the  tip  of the
　　   tongue.
　　  
　　   Point Six: The Mouth
　　  
　　　　  The mouth must always be closed. At all  times,
　　   breath through the nose, not through the mouth.
　　  
　　   Point Seven: The Eyes
　　  
　　　　  The eyes should be slightly open and gazing
　　   downward at a forty-five degree angle.   Rest the eyes
　　   in that direction, trying  not to stare   at anything.
　　   closing  the  eyes  may   cause  drowsiness, or visual
　　   illusions.  However, if your eyes feel very tired you
　　   can
　　  
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　　   close them for a short while.
　　  
　　   Regulating the Body by Walking
　　  
　　　　  Regulating the body by walking consists of  slow
　　   walking and fast walking. Walking meditation is
　　   especially  useful  for a change of pace when engaged