This is corect "related system/s in the psyche generally (as 'parts of the soul"
The ideas go back at least as far as Plotinus and also appear in the Golden Dawn, so that they must have had considerable influence in between to have survived so long. I
have a rough draft of a paper I am working on which deals with the material, and I will work it up into a more coherent form, but I will probably do it in a separate discussion from this one.
ZYD