I believe in meditation and strongly support it for what ever reason you can come up..whatever you believe about meditation and its benefits is probably correct.. Being more calm in a situation can have you thinking and moving more efficiently..including attacking and defending..All together meditation can account for allot of the reason why the skill level exists of the subject and the way that they do things.. A peaceful mind is allot easier to work with than one in conflict.. But a conflicted mind is good to go as far as practicing internal martial arts..or should I say martial arts for the mind! The difference between martial arts in the body and mind.. The mind in martial arts is more about adopting the correct alignment using depth and energy in an efficient way..because things still exist in spaces in the mind.. The body in martial arts you need to be able to utilize your basic body movements in a way that is both dynamic and efficient.. So the body has it's limits..but the goal is to take them to their farthest possible reaches.. So the next question is: What is the relationship between mind and body with regard to martial arts? Well the determination and control signals..come from the mind FIRST! So the thought process is a precursor to moving..because you are choosing to move in a certain way..though the moments can be limited based on body structure and dynamism.. Dynamic bases are always being considered within the mind.. And the body is a flow for that outlet.. So I see as meditation enabling better control over your body..thus demonstrating that your body will therefore have more freedom..or better utility functions!