Pain is inevitable when training Kung Fu. I always tell my students that if they are not in pain in every class, then they are wasting their time. Kung Fu training is pointless if the stylist doesn't push themselves beyond their comfort zone because unless they do, they are not improving. Pain is the feedback we get when our muscles, joints, tendons, etc. are being pushed beyond the point that they can comfortably manage. Kung Fu stylists need to learn the difference between “Good Pain” and “Bad Pain”. "Good Pain" being the kind of pain we aim to put ourselves through to improve our strength, flexibility and character and "Bad Pain" is the kind of pain we need to avoid as this can lead to damage and injury.
I spend a lot of time telling my students to get lower in their stance, or to maintain the pace or to hold the posture for a little while longer. At the same time, the student's mind is telling them to rest, as the pain is unbearable and the suffering will only increase if they maintain the posture. Training is a constant battle between the instructor trying to get the student to push and grow and the student’s own mind telling them to seek comfort and rest.
The Shaolin Kung Fu systems originated out of the Chan Buddhist methods and practices that were prevalent in China at the time. In the Ten Oxherding pictures, Chan Buddhist's teach that the mind is like a wild ox, wild and free and shows step by step the stages a student goes through trying to control this Ox. A considerable part of a Shaolin Kung Fu stylists training should be done in a state of mindfulness, this form of practice teaches the stylist a critical truth that most people are not aware of. This truth is that pain and suffering are two different things.
When we are pushing beyond our comfort zones, our body will give us feedback, this feedback that we call pain is inevitable. As mentioned above, it is our body telling us that it is being pushed beyond what is comfortable. Evolution has programmed in us to run away from pain, for this reason when pain arises in the body our mind decides we do not like this and this causes us to suffer while the pain persists. This suffering creates the need in us to do what we can to stop the pain. The reality is that suffering is not inevitable, suffering is the way we choose to interpret the feeling of pain.
So, next time when you are holding a painful posture or doing an exercise that is causing pain to arise; be still and just observe the feeling. When you notice the mind beginning to complain, stay calm and observe the mind’s complaints as an external observer. The pain will become more bearable, and you may be able to hold the posture for a little while longer than usual. Do this all the time during your training, and you will have taken the initial steps in taming the wild Ox that is your mind.