>>21743Not OP but that answer was pretty based lol. If you really want to 'prepare', self initiate into the higher realms of the Kabbalah. There are a lot of traditions surrounding this idea, most of them clones of one another.
Dion fortune is pretty solid in this area, and her books are recommended by Rosicurians to the 3 grades of Adept within the system, so you know she's at least somewhat legit.
Getting an astrologically labeled tarot deck like the waite or thoth can help you learn kabbalah, and as you practically get acquainted with the cards, so you will with the tree.
Crowley's Liber Samekh is pretty cool too.
You might want to start 'working out' your spirit first with some pranayama, the basics of which are described well in Initiation to Hermetics. Bardon is a fuck though, and you shouldn't take a lot of his shit at face value.
Cave of the Numinous is pretty badass also. Its a more Eastern form of initiation and ascension.