Thanks for writing about this topic. I think there is indeed a mystery to the letters as their is to the vowels. Most of the alphabets we have seem to have started off at least in some ways, as magical.
If you want to go into an avant-garde art take on the power of letters you might look into the oblique works of the Lettrism movement. What is striking about Lettrism is how they used it for visual poetry, leading to the idea and practice of hypergraphics. They evolved calligraphic techniques to give intense focus on letters. They also made up a conceptual kind of art called infinitesimals, based on the works of Gotfried Leibniz. Of course your mileage with this kind of stuff, that isn't really occult at all, may vary!
Just googling, I found this, which you already may be aware of:
no subject
If you want to go into an avant-garde art take on the power of letters you might look into the oblique works of the Lettrism movement. What is striking about Lettrism is how they used it for visual poetry, leading to the idea and practice of hypergraphics. They evolved calligraphic techniques to give intense focus on letters. They also made up a conceptual kind of art called infinitesimals, based on the works of Gotfried Leibniz. Of course your mileage with this kind of stuff, that isn't really occult at all, may vary!
Just googling, I found this, which you already may be aware of:
https://en.wikipedia.org/wiki/About_the_Mystery_of_the_Letters
I wonder, was this an influence on Kolb and Kreb? Either way it's interesting stuff, and could well be adapted to Runes or some other alpha-beth.
Justin Patrick Moore