A number of Thelemites, most notably Sam Webster and Kenneth Grant,
have argued that Liber AL is a tantra or grimoire.
As I continue to study it, I become more and more convinced of this.
My working hypothesis is that the entire book describes a
relatively small sequence of rituals and esoteric meditations
centered around a mandala (the palace with four gates) which may be
the Stele itself.
Excitation of the anahata chakra (Hadit is the serpent who flames in
the heart of every man) seems to be a key, followed by the
visualization of the heart-star as one in a blindingly vast universe
of stars in the body of Nuit; and this disorienting switch-off is
probably the essence of ordeal x. (Energized Enthusiasm hints at this
both obviously and veiledly).
Anahata-excitation also seems to be a key to astral travel and rising
on the planes (put on wings...).