a yellow circle, indicating this line as the governing ruler of the hexagram Nine in the fifth place means:

The influence shows itself in the back of the neck.
No remorse.

The back of the neck is the most rigid part of the body. When the influence shows itself there, the will remains firm and the influence does not lead to confusion. Hence remorse does not enter into consideration here. What takes place in the depths of one's being, in the unconscious mind. It is true that if we cannot be influenced ourselves, we cannot influence the outside world.