"How do I avoid harmful practise,
and how do I choose Chi Kung exercises so that
I don't mess up my energy system? "
Find a good Sifu to teach you! and u picked a very controversial book to quote form lol
Some types of qigong use mind intent and visualisation, others use the movement to guide the qi (dayan qigong for example).
My Sigong, Sifu and myself practise both hard and soft qigong methods that have differences in method etc. and as long as we keep them seperate then there's no problem...
david
Peace is not the product of terror or fear.
Peace is not the silence of cemeteries.
Peace is not the silent result of violent repression.
Peace is the generous, tranquil contribution of all to the good of all.
Peace is dynamism. Peace is generosity.
It is right and it is duty.