You know this guy, Burt Harding, is full of shit. This is from his Website explaining his Lineage in his teachings.
Burt started teaching after an experience with Bhagavan Sri Ramana Maharshi ( another man full of shit who died at the age of 71 in 1950), who appeared to him in 1974 while he was living in Toronto, Ontario. As a result of this experience, he acquired the sure knowledge that the only reality lies in the present moment, the Now, and that everything else is just an illusion. His spiritual search ended in that realization.
Moral of the story: Please direct your attention and intelligence to true scientific research and documentation if you are interested in real answers to your questions.