it's crap like that that makes it hard for those of us who understand what PP's are and what they do to convince anyone that we're not lunatics. I can't believe the number of idiots running around that think chi=the force and that they're some kind of modern day Obi Wan Kenobi. I also can't believe the number of people that think PP = interruption of chi flow or whatever the hell the fad is this month. PP's are bundles of nerves that cause a reaction when activated. That's all they are. The ancient chinese thought they dealt with mystical energy flow, but that's because the ancient chinese didn't know how the body really works. They used the knowledge available to them at the time to draw conclusions that, while they made sense based on what was known, turned out to be wrong.

If you think PP's are anything more than a cluster of nerves that can be activated to produce predictable results, your instructor has ripped you off.

Conversely, if you don't believe in PP's at all, just think back to the last time you hit your funny bone, and ask yourself why it hurt like that.
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"Belt mean no need rope hold up pants" - Mr. Miyagi, RIP.