>>40837804
Sit around with the sigils for a while; teaches you advanced mathemathical algorithms and such.
Advanced occult metaphysics.
"N.a.a-218" books aren't human-written btw; comes straight out of the Qliphoth.

Here's some more "invasory rays" if you enjoy advanced stuff.

>>40835822
Invasory Rays of the same Qlipha.
These are worth spending time with.