Looks like Gyi is trying to break into the Chi Gung market:
An ancient form of moving meditation, Min Zen was passed to Hanshi by Bando master Dr. Muang Gyi. Utilizing simple stones, these movements are an effective form of Chi Gung. 2 disc set.
I have been to a few camps where he was teaching and his constant stories which are very hard to believe, is staggering. Great instructor but its hard to truly respect and trust a guy who you can't tell if he's telling the truth or not. His stories weren't limited to the martial arts. If you did the math, there were not enough hours in the day to do all he's claimed to have done in the world.