There are some threads discussing the writings of the gnostics and their thoughts but I found no mention of the archons which are very important to the gnostics. Therefore I offer this quote:
Quote from John Lash: (_http://www.metahistory.org/gnostique/archonfiles/AlienIntrusion.php)
"The Nag Hammadi material contains reports of visionary experiences of the initiates, including first-hand encounters with inorganic beings called Archons. Gnostic teaching explains that these entities arose in the early stage of formation of the solar system, before the Earth was formed. Archons inhabit the solar system, the extraterrestrial realm as such, but they can intrude on Earth. Interestingly, this Gnostic insight accords closely with the view of Jacques Vallee, who maintains that ET/cyborgs probably belong to the local planetary realm. Vallee also proposes that the ET/UFO enigma is a “spiritual control system,” a phenomenon that “behaves like a conditioning process.” (Messengers of Deception). This is exactly what Gnostics said about the Archons: they can affect our minds by subliminal conditioning techniques. Their main tactics are mental error (intellectual virus, or false ideology, especially religious doctrines) and simulation. Archons are predatory, unlike a wide range of non-human and other-dimensional beings also know to the Gnostics, beings who are benevolent or neutral toward humanity.
Physical descriptions of Archons occur in several Gnostic codices. Two types are clearly identified: a neonate or embryonic type, and a draconic or reptilian type. Obviously, these descriptions fit the Greys and Reptilians of contemporary reports to a T. Or I should say, to an ET."
There are definite similarities with Castaneda's predators or fliers.
The gnostic tradition is very old and based on shamanic direct experience.
It is not surprising that they and their writing were almost completely destroyed.