Wing Chun Illustrated Magazine Issue No. 24 - Sifu John Smith

"Chi Sau is the cornerstone of the Wing Chun system. If it is not drilled in thoroughly and understood, then you will only then have a superficial understanding of Wing Chun or it may not be Wing Chun at all. When trained correctly, Chi Sau develops a way to hit our opponent in one action; it gives various angles of intersection regarding footwork and develops a habit to automate a response to untangle our hands if there is an obstruction. However, one thing it does not give us is an attack strategy once we are separated from out-of-hand contact."