Charon was the son of the primordial gods, Erebus (the God of Darkness) and Nyx (the Goddess of Light). The name Charon means ‘fierce brightness’ in Greek, and the Roman´s equivalent was Charus. Charon was the ferryman of the dead, an underworld spirit in the service of King Hades. He received the shades of the dead from Hermes who gathered them from the upper world and guided them to the shores of River Acheron.
The Acheron was also known as the River of Pain that flowed from the Styx and believed to carry pains intended for mortals back to Earth. It also carried the good souls from the Underworld that were sent back to Earth to be reincarnated as mortals.
Those who had not received due burial and were unable to pay his fee would be left to wander the earthly side of the Acheron, haunting the upper world as ghosts.
Although Hermes might have taken the souls of the dead to the banks of the river for free, Charon demanded his fee. From there, Charon transported them in his skiff to a final resting place in Hades, the land of the dead, on the other side.
The fee for his service was a single obolos, a silver coin worth a sixth of a drachma, which was placed in the mouth of a corpse at burial. This process was known as placing Charon’s obol. People who were unable to pay the fee were doomed to wander the shores of the river for a hundred years.
Since most Greeks, understandably, did not want to wander in the mists and marshes, they buried their dead with coins to pay the ferryman; this tradition is still retained to this day in many parts of Greece.
Living people who want to visit Hades must also pay the ferryman. Given the fact that they needed two trips, Charon charged significantly more, and several myths and stories indicate that visitors to Hades payed with a golden branch to cross the river and then return.
In the catabasis mytheme, some heroes—such as Heracles and Dionysus—traveled to the Underworld and returned, still alive, conveyed by the ferry of Charon.
Several Greek and Roman authors wrote about traveling to the Underworld, usually with the assistance of an experienced guide. Dante’s “The Inferno” and “The Aeneid” by Virgil also feature a trip to the Underworld.