I’m gonna say the same thing I’ve said all along about practice, especially those of the taoist variety that BKF has given out to the public: they are, ultimately, practices that get you inside and get you to feel things for yourself. This is a natural process, and this is emphasized a lot in Frantzis’ writings, and is repeated by many masters in the taoist tradition (Taomeow’s story of Wang Liping moving organs around comes to mind).