The third principle we can learn from the Arrow Pole posture is how to get the power from the ground to the tip of the pole via the use of concentric spirals.

OK, I know the lines shown are not spirals. No matter how I draw the spirals they will not be a good representation of what I want to convey across.
I shouldn’t even mention counter-spirals cause that would be even more confusing without some basic understanding of the Tao, physics and the workings of Nature.
Even then its much easier to just do it, feel it and understand it. Some things are just meant to be felt rather than puzzle over intellectually.
That’s why students who are learning the pole will need to keep practicing the Arrow Pole posture over and over again. Then the gung lik of the pole will manifest in the hand.