I read the Gurdjieff books years ago.
I found the ideas interesting and beneficial.
Never attended a group.
Unfortunately, what happens is a visionary, or prophet comes along.
They teach for awhile.
After their death, the philosophy immediately starts to degrade.
In the following years people appear, proclaiming themselves as experts, holy men or whatever.
BTW I hope you are not jud
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Recovery from Destructive Cults and Groups