Real-time movement control requires not just sensing, but also predicting limb position; this is proprioception, our sixth sense, that is the sense of the relative position of neighboring parts of the body and strength of effort being employed in movement.
When you are swinging Meels you are both forcing a weight in a desired trajectory and, since the weight is distributed and balanced, you are also being forced to follow that pathway, and the weight, in various defined motion patterns.
Assuming proper techniques are followed; with the onset of fatigue and the body's inherent desire to find the path of least resistance, that is becoming and being more efficient, means that the sense of hand position must be tuned with greater precision...this stimulates the mind and enhances the proprioceptive sense.
A number of findings are consistent with the idea that motor learning, such as learning new moves, handling of new instruments (weapons) or new sports, is associated with systematic changes to proprioception.
Amongst the benefits of adding proprioceptive training to ones conditioning program is improvements in both movement speed and accuracy, but learning to generate accurate movements also results in improvements in sensory acuity, i.e sharpness or keenness of thought, vision, or hearing.
Naturally there are more ways than swinging Meels or doing Persian Yoga which can help you achieve these goals but the entire premise, and in fact the promise of, Persian Yoga is the simultaneous development of all additional skills required for a truly holistic approach to physical skills development.
For more details see the benefits of Persian Yoga.