The second thing we can learn from the Arrow Pole posture is the use of triangulation to focus our power when handling the pole.
I have added a few lines above to give a basic idea of what this means. This is not exhaustive. The actual triangulation is more complicated than this.
A series of principles are applied in order to triangulate properly. For example, we can use a body closing movement to triangulate.
Add to this the principle of the six harmonies and the plot quickly becomes complex. This is why we must drill Arrow Pole a lot so that we can add in the principles layer by layer.
If we try to dump all the principles in at one go the information will overwhelm and confuse rather than enlighten.