Donald,
When I am talking about the rhythm of the mantra, I am referring to the rate at which you are telling your muscles to move. The words of the mantra put your conscious mind in a specific muscle group and the rhythm at which the mantra is said is the rate at which the muscles will move. For example, Keep Pulling, Keep Pulling, Keep Pulling, is said in a smooth rhythm if you want your muscles to move smoothly. If the rhythm is choppy, or incremental, with gaps in between the key phrases in the mantra, ie. Keep Pulling.........Keep Pulling...........Keep Pulling, you will find that the muscles move in the same incremental fashion. Every time you say the key phrase of the mantra, you are sending the conscious mind to that muscle group. The revolving rhythm traps the conscious mind in the muscle group and does not allow it to wander because there are no gaps in the speech pattern. This is much easier to explain with verbal examples so if this explanation does not work for you, please call me so I can give you some better examples.
Thanks for the question. This thread is made to get people thinking about what is going through their head during a shot.
Take Care,
JT