Plato's choice of this word is deliberate. He is not describing neutral carriers. He is describing people whose job is manufacturing a convincing reality for an audience that cannot see behind the curtain. Here is what matters clinically: the conjurers are not necessarily villains. They may be devoted parents, conscientious teachers, or well-meaning community leaders.
Now it returns to observe and experience what's there from a different vantage. Mercury rules how we process reality and make meaning within the world. Retrogrades are a reorientation of perspective. Under the influence of Sagittarius, we review the belief systems that exist within us. Under Scorpio, we review the unconscious material that propels us to have these belief systems. Sagittarius is vast heights, Scorpio is profound depths.