I tend to reach for Kabbalism first mostly because I am a lot more familiar with the detail there. There do seem to be a lot of useful parallels there (obsession with the sacred nature of the alphabet, for example, and with hidden magical methods hidden in the text of the holy book).
/// A few simple, colorful, easy-to-integrate-into-play examples would do wonders for my "feel" about the malkioni. Got any to share ?