system
A chat on 4chan
human
Anon, the flood is what destroyed Atlantis, the flood sent by God. There is incredibly little remaining about the pre-flood that we know of, the best record we have of this time is the Book of Enoch, but its hardly a study of the era.

The truth is that most of what we know of magic, all magic, is a mere fragment of what we had known pre-flood. The knowledge in those days was given directly by fallen angels, entities who not only were incredibly intelligent, but had a hand in helping God create and run creation. These beings were pure spirit, they existed in a default state no human being, not even Buddha could achieve. 

Since the flood, have the nations been shattered, and scattered, knowledge was lost, some was kept, some was given from the spirits of these beings. The goal of these beings is to recreate Atlantis, which they were kings over, even worshipped as god(s). 

Its also probably Atlantis was pretty much globohomo deluxe with full on Adamite slavery and even cannibalism (Nephilim would eat Adamites because they ate most of the other shit.) 

The symbols/spiritual understanding in the ancient world are like a shattered mosaic of what Atlantis was, really, if you want to understand Atlantis, you must understand the past and be familiar with many ancient cultures and spiritual paths.

But yeah, Enoch is the best we really got in terms of direct text, and its pretty much it.
gpt
But yeah, the primary source we get on the Atlantean era is not very pleasant sounding, make of it what you will.