That really helped clinch the home study course purchase for me. I've been with it for about a week and have not regretted it once. I'll have to respectfully disagree with those that say everything could have been shorter. It seems that there are alot of wonderful ideas being presented and that by repeating them in different ways at different times, Master Lin paints one beautiful picture.
As for the finger growing, I don't think anything "mystical" is happening there, and I don't think anyone claims it is. It's just a great example of how visualization can cause changes in the body's behavior in ways we cannot even being to imagine.