Every god, like every archetype, had an ominous shadow side, and so did Mercurius. In Alchemical Studies (par. 303) Jung warns that Hermes comes as the lumen naturae (light of nature) only to those who are mindful and vigilantly strive towards it, while for many the same light “turns into a perilous ignis fatuus [foolish fire, an illusion], and the psychopomp into a diabolical seducer.” He is, after all, the son of Maya, a great goddess of Illusion. In an Orphic Hymn, Hermes is called “the Interpreter of All.” There is indeed a real danger connected with Mercurius, which is being caught in the web (Maya) of lies, sleek word propaganda disguised as the ultimate truth.
– symbolreader.net