Book 4 is somehow both incredibly straight forward and also absurdly dense. I feel it would best serve as the pallet cleanse to Crowleys other works, allowing the subconscious to mull over his more complicated symbolism.

The book can be broken into 3 main components, each with its own intent.

Part 1 is a concise look at Crowleys opinions on yoga and other traditional meditation, he explains the roles that basic practice plays in the later levels of his systems.

Part 2 looks at the symbolism and make up of Crowleys ritual tools.

There is also a brief interlude, which is quite fun, wherein Crowley takes a tongue in cheek approach to the analysis of occult symbolism explaining how anything can be used as an occult metaphor.

Book 4 if nothing else shows both Crowleys sense of humour and also how he was born into wealth and could afford the elaborate tools described within.

Really though it is a great resource and is incredibly straight forward and oddly enough reminded me alot of Ram Dass’ “Cookbook For a Sacred Life”