Actually, what Dan is teaching is stuff thousands of years old and can be found in Chinese and Indian internal arts; which is pretty much where Ueshiba got his info for his development of internal power via Takeda. If you look at a lot of Ueshiba's quotes on aiki from this perspective, you will see that a lot of his quotes are exactly what can be found in the Chinese teachings word for word - kind of makes some of his stuff less esoteric and more understandable.