Master Lin did discuss a sexual practice at the October retreat last fall. Esoteric practices regarding sexual activities are not the focus of this system. It seemed a bit embarassing for him to go there, but his sense of humor and sincerity helped. I noticed a few people stop taking notes! Ocassionally, Master Lin will share something different, other than the core focus of SFQ, as he knows alot about Chinese culture and practices, and also has some interests or specialties not in the program material, 'predominately' related to healing work and helping others heal, regarding injuries or illness.
A Master, can have a higher purpose that shapes his area of focus within qigong, and his teachings. The questions you ask, don't match the focus or practice of this system, nor the underlying purpose of Master Lin's," a healer in every family".
Use caution lifting subject matter like this selectively out of books. It is not a balanced qigong practice, but rather a specific item.
Higher level qigong practioners do noT all have secred methods they use in the bedroom. Their focus is seldom, if at all, on their sex life.
love,
gallen