The first 2 layers in Positive Circle, 202010-07

On 7. Oct 2020’s online class, Master Chen talked about the first 2 layers of the positive circle.
The 1. layer is horizontal, with only the hand going back and forth.
The position of the hand should be slightly higher than the shoulder, and much higher than the elbow. ← →
The 2. layer adds a vertical dimension to the circle (to the above action), by moving up and down.
This up-and-down-movement can only come from the shoulder & kua.
The dropping of the front kua takes the front hand elbow with it (downwards), the dropping of the rear kua takes the front arm with it (sideways).
The rear foot pushes into the dantian. The power is from the dantian. ↓↑
Combined, the horizontal ← → and vertical ↓↑ action will display these two layers and the hand will appear to be moving, although it is not.