Hi Nanny,
Old Dude is a master of internal energies. They can be used to kill, stun or heal.
And very rarely then can even be regenerative. Ch'i iz like electricity or the wind. Very
much like the wind. It iz an invisible spirit practically impossible to see with an unaided
human eye. However, also like Wind, you can prove its existence by the effect
it exerts on physical reality (Strong breeZes and Whirlwinds for eXample!). The younger student iz being
blown backwards like a dead leaf. ......
The other cool thing about the internal is it haz a gentle enough learning curve that even old
and sickly people can learn it. Actually it IZ medicine which increases in power az one growz
older and continues to practice. Meanwhile, it is more powerful than the other more
typical fighting styles. Tongman teaches it to a few of us long distance by the way.