Hermes / Mercury dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — Theresa Cheung
Hermes was the messenger of the gods, and any dream in which someone delivers a message to you is one that you should not ignore. Think about the message but also the nature of the messenger. Hermes was also a trickster, as well as being impulsive and self-centred, so should the messenger in your dream be trusted? There may be an indication that some person bringing news or gossip in waking life is not wholly reliable.
Source: The Element Encyclopedia • Author: Theresa Cheung