Be solid and still as the mountain. Practice shuniya.
In its application to man, the hexagram turns upon the problem of achieving a quiet heart. It is very difficult to bring quiet to the heart. While Buddhism strives for rest through an ebbing away of all movement in nirvana, the Yi Jing holds that rest is merely a state of polarity that always posits movement as its complement. Possibly the words of the text embody directions for the practice of yoga.
True quiet means keeping still when the time has come to keep still, and going forward when the time has come to go forward. In this way rest and movement are in agreement with the demands of the time, and thus there is light in life.
The hexagram signifies the end and the beginning of all movement. The back is named because in the back are located all the nerve fibres that mediate movement. If the movement of these spinal nerves is brought to a standstill, the ego, with its restlessness, disappears as it were. When a man has thus become calm, he may turn to the outside world. He no longer sees in it the struggle and tumult of individual beings, and therefore he has that true peace of mind which is needed for understanding the great laws of the universe and for acting in harmony with them. Whoever acts from these deep levels makes no mistakes.