(reproduced from http://shaolin.org/answers/ans16b/dec16-1.html)
On another topic, can you please elaborate on good pain and bad pain. Some students, without proper understanding, give up training chi kung when they experience pain.
— Sifu Sippe Douma, New Zealand
Answer by Grandmaster Wong Kiew Kit
For convenience, pain may be described as good or bad. Good pain is beneficial, and bad pain is harmful.
When a practitioner has generated a vigorous chi flow, the chi flow will break through blockage. In the progress, good pain may result. On the other hand, bad pain is due to illness or injury, or to wrong practice.
Good pain is mild, and is actually quite pleasant, though it is painful. Bad pain is severe, and is unpleasant. This is an academic description, and may not be meaningful to those who have no experience of good and bad pain. A better way to differentiate between good pain and bad pain is though direct experience.
Initially a practitioner may not differentiate good pain from bad pain easily, but with increased experience he will have no difficulty.
An analogy is the sour taste of an orange. An orange can taste sour because it is good, or because it is bad. Like good pain and bad pain, good sour taste and bad sour taste are actually different, but because of the limitation of words we still use the same terms, “pain” and “sour taste”.
A person who had not tasted an orange before would be unable to tell whether the sour taste of an orange was due to an orange being good or bad. But with experience of tasting some oranges, he would have no difficulty telling the difference.
What should a practitioner do when he feels good pain. He continues his training. When the blockage is cleared as he recovers from his illness or injury, the pain will disappear. But if the pain is bad, he should slow down or stop training until the situation improves.
If you have any questions, please e-mail them to Grandmaster Wong via his Secretary at firstname.lastname@example.org stating your name, country and e-mail address.