I was avoiding "moving of yin and yang" because of a bad shoulder joint that has been giving me trouble for over a year. A few days ago, I started doing the active exercises in the order they are presented on the video. Two days ago, I noticed that the pain in my shoulder is 70% gone. I power washed an entire house yesterday, and scrubbed all of the overhangs above head with a brush without having pain in my shoulder girdle. I guess SFQ works!
