Gurdjieff, when young studied Indian philosophy, and later read Madame Blavatsky´s books, and in course of his travels in India and Tibet discovered that 9 out of 10 of her references were not based on her personal knowlegde. He said that it cost him several years of exploring to verify this. In Tibet he got himself appointed collector of dues from the monasteries for the Dalai Lama, and in this role was able to go into any monastery. He discovered instances of abnormal development, "high elevations", what are called "magic powers", but he says that he found little, apart from something in certain dances and ceremonies, which could be described as objective knowledge. Most of the powers developed by certain monks were diversions from the normal, interesting, but not useful for a method of self-development for people of the Western World, such as he had in mind.
A.R. Orage´s Commentaries on "Beelzebubs Tales to His Grandson"