Question: what are the enochian keys?
Answer: The essence of the Enochian system depends on the utilisation of Eighteen Calls or Keys in the Enochian language (a series of rhetorical exhortations which function as evocations), and a Nineteenth key known as the Call or Key of the 30 Aethyrs. The calls are used to enter the various Aethyrs, in visionary states.