Once the principle of relaxed and straight neck is correctly understood, head will be absolutely empty and eyes expression will naturally attain (the state) of looking and not seeing, which will integrate with (the state of) ears listening but not hearing. The feeling of relaxation of the head will make one's spirit happy and influence the facial expression, showing a slight smile.

One must not misunderstand the eyes expression of "looking and not seeing" as dull staring, like a pond with still water, without movement and changes. Going out and entering of eyes expression (Eye Spirit) is naturally interlinked with the mind and intention, which give rise to the changes of Opening/Closing of expression. When eyes expression is merged into the movements of boxing routine one should only keep the eyes open, when Eye Spirit goes out, it is for sure accompanied by the Spirit entering; entering of Eye Spirit is surely followed by the Spirit going out; only when going out and entering alternate and circulate, one can truly use eye expression in such a way that there is Yin within Yang, Yang within Yin and Yin and Yang are combined together. (Ill.4)
		Ill.4: Natural Opening and Closing of Eye Spirit

When Eyes Spirit is held back and looks towards the inside, it does not mean that eyelids drop and eyes are closed or one narrows the eyes and does not look ahead; when Eye Spirit is fixed on a point, it is not using strength and straining the eyes. If the Eyes Spirit is not correctly used, then eyes may hurt because of strain, and it is not only not healthy but very harmful.

3.EMPTY ARMPITS

During boxing practice people often only pay attention to sinking the shoulders and often overlook to empty the armpits. They often incorrectly believe that sinking and dropping is the correct movement of the shoulders. Actually deliberately sinking the shoulders, which are pulled down with strength, may result in the feeling of heavy and tired shoulders.

Concerning empty armpits, the secret method passed down by my teacher is "practicing boxing with two hot steamed buns carried under the armpits". My teacher used to give an example from a daily life to explain this: when you pick steamed buns from the steaming hot food steamer, the movement and posture at this short moment are vivid explanation of the essentials for empty armpits. At that moment the strength you use to grasp the bun is extremely precise, because you may scald your hand when you grasp the bun too tightly, and drop it when the strength is not sufficient; at the same time it forces you to use your hand in such a way that it is neither too close nor too distant (from the surface of the bun), in a state of holding with just right strength. "Practicing boxing with two hot steamed buns carried under the armpits" in a plain and easy to understand way illustrates that the armpits should be relaxed and at the same time one should combine a very intriguing, slight strength that is both antagonistic and united. When one practices boxing keeping in mind the hot buns kept under the armpits, then Internal Qi in shoulders and arms will pass smoothly and flow swiftly. After a long time of practice the habit will become natural and emptying the armpits will not have to be intentionally conducted. (Ill.5)

Ill.5: CORRECT - Both armpits empty		Ill.6: WRONG - Armpits empty, arms close to the torso

If one keeps two armpits empty incorrectly, the elbows raise and shoulders becomes stiffened and tensed; the flow of Internal Qi will be obstructed. When armpits are not empty, the arms are kept close to the torso, shoulders can't relax and hence Internal Qi is suppressed and does not flow. (Ill.6)

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