" The only thing that Apollon might not cede to his brother was the power of high soothsaying; for Apollon alone was entrusted with the knowledge of the decisions of Zeus. But he gave Hermes the soothsaying of three swarming virgins—three sister bees on Parnassus—and also his own former dominion over the beasts, together with the office of initiated Messenger on the path leading to the House of Hades in the Underworld: the office of Psychopompos, the escort of souls. Such a liking had Apollon taken to the son of Maia, who furthermore received from Zeus the right to traffic with immortals and mortals: the office of Messenger of the Gods. "
― Karl Kerényi , The Gods of the Greeks