It is okay for something good to cost something.
SFQ is well worth the money, "if" you actually do it, and incorporate it into your life. Master Lin's higher purpose is felt thoughout the material. The courses are very complete, very well done, and lead somewhere very benefical to you. You learn active qigong exercise, inactive(meditation), and also how to do healing work on others. Most other systems don't cover this, and, have progressive levels going forward in these categories.
