Probably you started the flute to enjoy yourself but gradually you have experienced pain in the shoulders, headaches, numbness of the hands etc. Do you worry about stressful situations when you practice?
These problems are caused by unnatural motion of the original body : if you visited the doctor she would just say
'You are working too hard, you should rest.'
There is hardly anyone who is consciously aware of the motions of the muscles, the joints and the bones but if conscious just for a moment, a performance can change, and you can move more comfortably, and an injury and failure can be avoided.
Even if you get good advice from your teacher during a lesson, sometimes you can understand it intellectually but be unable to put it into practice, leaving you with the feeling you must practice more, but cannot because of physical limitations. In this case knowing how to more can be invaluable.
Although I believe explaining about the movement inside the body is necessary for musicians and music education, it is extremely difficult even for accomplished musicians and music teachers.
Body Mapping provides a conceptual framework which allows the musician to deal with these problems.
The brain manages the movements of a living thing. If exact information about a motion is known by the brain, we can move efficiently.