In Book One of Homer's Odyssey, Odysseus' palace is ravaged by suitors for the hand of his wife, Penelope. His son Telemachus, day dreaming of his father's return, is incapable of action. Athena, in the guise of Odysseus' trusted counselor, Mentor, comes to Ithaca to rouse Telemachus and give him advice and hope. Thus mentor means a trusted guardian and teacher.
Comments: Mentor