Hermes is the ancient Greek god primarily known as the messenger of the Olympian gods. Beyond this role, he is the god of many domains including:

• Commerce and trade
• Travelers and roads
• Thieves and cunning
• Herds and flocks
• Oratory, language, and writing
• Athletics and gymnasiums
• Luck and fertility
• Boundaries and transitions, including guiding souls to the underworld as a psychopomp

He is also associated with invention, wit, and diplomacy. Hermes is depicted as a swift and clever deity who moves freely between the mortal and divine worlds, acting as a herald and protector of travelers and merchants

. His symbols include winged sandals, a herald's wand called the caduceus, a winged hat, and a lyre. Hermes is notable for his trickster nature and his role in various myths where he aids heroes or outsmarts other gods

. In summary, Hermes is the god of communication, commerce, travel, boundaries, and cunning, as well as the guide of souls to the afterlife.