1. HFY Saam Dim Yat Sin Ceterline: The self centerline, obvious center of gravity for any individual.

2. HFY Kiu Sau centerline:A <----> B centerline. Appears when we intorduce another person into the equation. The newly formed centerline between opponent A and B. Centerline of engagement. Meaning at the point of engagement one should neither over commit nor sell themselves short. This is where the Hung Fa Yi Kiu Sau training comes into play specifically. The kiu sau combined with the tin yan dei training and 4 gate and 6 gate technology must be completely understood before learning the HFY kiu sau chi sau. This is different than someone who might learn and use the technology of tan bong and fuk with out having trained any kiu sau. As you may recall we (HFY) spent a lot of time on this forum discussing kiu sau technology. For that very reason this is why we defend our (HFY) position that chi sau is born of this knowledge of kiu sau and centerline engagement, tin yan dei, and 4 gate and 6 gate technology and is used for actually fighting and not just an excercise to be used in class. So yes there is the point a to b concept but the key to understanding how to connect and how to gain the advantage once you engage is found in the training of the kiu sau, tin yan dei and 4 and 6 gate technology.

3. Gee Ng Kiu Tin Yan Dei centerline: Heaven Human & Earth time and space factors, Gee Ng Kiu is energy factors, in HFY system we have 5 types of energies.
Because the opponents size shape and positioning are not constant you must be able to find the centerline between you and your opponent as defined by tin yan dei factors.


Yin and Yang lines are reference points of the HFY box/gate theory employed by HFY wing chun system. Yang for instance starts from the left shoulder yin would be nipple and then yang center and again yin right nipple and then right shoulder yang. Of course these are must be combined with the upper middle and lower reference points of siu nim tao to produce the HFY 4 and 6 gate box theory we speak of in wing chun.

Of course there is more to it than this but I hope this helps bridge the communication gap a bit.