Richard
One might be justified in claiming that Levi's correlations of the trumps with the Hebrew alphabet is arbitrary, but I fail to see the arbitrariness in the GD's system. First of all, the double letter zodiacal attributions failed for trumps 8 and 11, so the GD interchanged Strength and Justice. The amazing thing is that all the other doubles match up quite well. Another problem was with the planetary attributions of the simple letters. Since different versions of the Sepher Yetzirah are not in agreement on this, the GD apparently felt justified in being creative with the simples........I just like to have something a little less arbitrary in understanding the underlying structures of ideas that give the cards their meanings to begin with.
It is logically elegant to correlate the mothers, doubles, and simples with the orientations of the paths, in which case one might as well use the Gra, which has more symmetry than the Kircher. However, this ultimately creates more problems than it solves.
Try as I may, I can't understand how the GD system is arbitrary. Creative yes, but arbitrary?