Mental meditations,you do essentiially in your head, that is, without bodily movement.The fact that we term these "mental" does notmean that they do not also affect the emotional life and physiology the use of the muscular apparatus. You do them while remaining in one position.
             The diffenrence between "structured" and "unstructured" meditations. A structured meditation is one that carefully ans precisely defines what the inner activity is that you are working toward.
             Breath Counting is a structured meditation, the instructions are to count your breaths up to four and then to start again. You are to keep trying to be aware only of this counting and aveerytime you beginto think of, or be aware of,anything else, to bring yourself back gently and firmly to the counting.
             As you have seen from the experience with Breath Counting, this is extremely hard and rigorous work. It takes constant attention and vigilance.
             Its goal is an coherently from to follow the directions completely and deeper we get into it, the more we see that it is impossible to do completetly without some real expansion of the ways we can perceive and relate to realllity.
             It is just not possible , in our usual, everyday way of being, to think actively and dynamically of just one thing at the time without comparisons or classes of thing, and yet it is exactly this task, and working in a hard, disciplined it is no longer impossible for us.
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