You should know what you're getting yourself into (which I didn't): this is a booklet of pseudoarchaeology which mixes esotericism, philosophy and mysticism. Many of the proposed "facts" about ancient Egypt are to be double-checked through more reliable sources and, though fascinating, lots of them are quite a stretch from credited theories.
Though fascinating, these speculations are far from being harmless and lead to stuff like Theosophy.
Still, I give it two stars instead of one because a couple of concepts might be of interest also to rational people who prefer archaeology over mysticism, particularly the idea of a centripetal vs centrifugal mind process when it comes to processing symbols.
A text to be handled with care.