Chi Sau Attack and Defend Drill Training
Chi Sau is often misunderstood to mean trapping or staying in contact (sticking) with the opponents arms, the actual meaning is to free the arms from obstructions and maintain the attack. In fact Chi Sau is not what we want to happen in self-defense, but if we get blocked out or tangled by the opponent, Chi Sau develops automatic reflexes for getting back to the center-line.
Chi Sau trains you to let the opponent show you how to hit them, it is in actuality fixing a problem of access and not gaining an advantage of control. In Wing Chun we always chase center and never chase hands, Chi Sau should always develop the instinct to chase the center-line and take position.