I was excited when I was writing it, so “archetypical wheels” is more figurative than literal (also it's a mistake, I think, original: archetype’s wheels, wheels of an archetype). In this case it means (about) “forces”. The “Gnostic tradition” or “Gnosticism” is ancient philosophy, religion and mystic system. Gnosticism is “mother” of the Christianity, but the Gnostic tradition was given a status of heresy, and The Church eradicated it. Some Gnostic conceptions were saved by the occult philosophy and traditions (for examples, by occult cabbala).

When I found the text of the “Main theme” (“Voland’s theme”, “Voland’s hymn”) I was thinking: “It’s the chaotic set of three occult formulas (SATOR, INRI, Abracadabra)”, but then I realized: “All of them point to cabbalistic name Jeshua”. I was shaken by this discovery much.

So, It’s interesting for me: is It a coincidence or It’s author’s plan. I think first (some pointers are very subtle).