Boris Moravieff's "Gnosis volume 1 comes to mind as a real genuine old teaching.
I think all of us will have to use our present learning as well.
You can read volume 1:
_
Volume I
Resonates will many it seems.
I've read each of his books 3 times over the years and they are sitting on my shelf as I type this.
Maybe it's time for a 4th time through!
But at some point reading is not enough. Perhaps that is why the Christ seemed not to write anything down. Gurdjieff himself also said Christianity; the 4th way, is a dynamic tradition that springs up almost on its own when it is most needed or missing. And the C's have pointed to the fact that we don't absolutely need a 3D facsimile of knowledge on a thumb drive. The flame of knowledge can live in our minds and hearts.
My experience is that Intellectualizing generally falls short in some way, or, holds the object of the intellectualization at some distance for the sake of examination.
IOW, it is safe.
One of the points of Christianity is to 'become' it; to allow it in; to allow the presence and being of Christness/conscious awareness inside all the enclosures and barricades of the self and soul. The earnest follower of Christ needs to actualize the teachings within the soul of their being; to make that stuff real... within, and without; Acting in accordance while observing.
And that is not safe.
That's what I am driving at.
Now, does this happen only in the privacy of our own prayer room?
Is that enough?
Can it be discussed here?
Is there any point to attempting to do that?