Additionally , Ovid wrote that Mercury carried Morpheus ' dreams from the valley of Somnus to sleeping humans .
He was also , like Hermes , the Romans ' psychopomp , leading newly deceased souls to the afterlife .
Ovid wrote that Mercury carried Morpheus ' dreams from the valley of Somnus to sleeping humans .
He was also , like Hermes , the Romans ' psychopomp , leading newly deceased souls to the afterlife .