(Greek γοητεία goēteia "sorcery") Also called goetia. A term primarily known in English largely from the seventeenth century book The Lesser Key of Solomon, in which its Ars Goetia describes the evocation of seventy-two demons. The book was popularized by Aleister Crowley in 1904 as "The Book of the Goetia of Solomon the King."
Goeteia is a science of black magic (magic comes from magi, priest). Magic is the science of influencing nature's phenomena, both internal and external. The practitioner of goeteia uses ritual and energy in conjunction with lower beings in nature to manipulate, harm, gain power, control, and indulge in sensations through intentionally feeding desire. It is easy to see the results of such techniques by observing the degeneration of its enthusiasts.
"Goeteia teaches us how to invoke the purely tenebrous entities. Goeteia’s invokers are enslaved by the powers of evil." - Samael Aun Weor, Esoteric Treatise of Theurgy
"Frankly, Spiritism (with its mediums) would have been useless to us, since we wanted to see, touch, and feel all the entities that are mentioned in the Conjuration of Solomon the sage! Likewise, for us Goeteia’s circle of pacts and black evocations would have also been useless, since none of us wanted to fall into the abyss of black magic. Therefore, only High Theurgy could help us resolve all of these problems." - Samael Aun Weor, Esoteric Treatise of Theurgy