Tai chi is the one exercise that can universally help solve our growing health crisis. It has stood the test of thousands of years. We have a generation of baby boomers with increasing health problems; old people who are sick, in pain, fearful, and cranky; a middle class that is increasingly incapable of affording most of the drugs that are prescribed for their ailments; children that are flaccid, diabetic and asthmatic. People of all ages are addicted to drugs, alcohol, sugar, cigarettes, and caffeine. Stress follows almost everyone like a shadow.
When you start moving into the internal stuff, you start learning how you don't get your power from your muscles. You open up the energy channels inside your body and you shoot something through them and all of a sudden, you've got many times the power you could get physically, or even if you don't, some other things. To get this power to come from inside you, this chi, this energy from inside you, you have to learn how to completely relax.
You can fight based on a strong mind, based on developing your muscles and reflexes, training your motor functions and going back again. Having a strong enough mind to actually put them into action. This is not actually terribly different from what an Olympic athlete does - and essentially describes the process of becoming an Olympic athlete.