Another way of saying "Qi Gong" as far as I can tell, of which there are many schools. Some of these exercises work for me, while others have left me worse off than I was before. Word is it can take up to 3 months for you to get various "imbalances" corrected. I'll let you know.
I wouldn't take the informational passages between exercises too seriously. Best to scan. They're extremely vague and uncited, giving me the impression he tried to cram years and years of study into too little space. As a result, very very fluffy (almost laughably so) at times.
The rating will go up if my qi situation actually changes.