Our Yang form trains subtle ways of huajing and fajing. You need to be able to control your movements to access them.
Huajing requires you to hold back, to control your movement. If you lack the control you end up resisting and you waste your strength. Worse still the opponent’s position is still intact and he can carry on attacking you.
A good huajing causes your oppponent’s strength to roll off smoothly with minimal, optimized movement. At the moment his strength is neutralized then your chance to attack is there.
When the opening is available then you must fajing quickly. If you take too long to set up your fajing then the opponent will have time to fight back. You need to practice doing fajing naturally so that you can eliminate movements you do not really need. Once you have deleted the excess movements you should be able to fajing quickly in the blink of an eye.
When you fajing you must take care not to push hard but to strike hard. A hard push is not necessarily a strong fajing. A hard, forceful strike is the result of a strong force impulse resulted in the focusing of concentrated power at the point of impact. Such a force is injurious even when it does not look powerful. This is what old timers call an internal strike.
So pay attention to your practice and the skills mentioned in the Tai Chi Classics will come alive in your hands.