Final answer:
Athena disguises herself as Mentor to assist Telemachus in preparing for his journey, reflecting her intervention in human affairs as the goddess of wisdom and warfare.
Step-by-step explanation:
Athena disguises herself as Mentor to make preparations for Telemachus's journey. This act of Athena demonstrates her role as the goddess of wisdom and war who is often involved in the mortal affairs, guiding and protecting her favorites in the epic tales of Greek mythology.
Athena's choice to disguise herself as Mentor, an old and trusted friend of Telemachus's family, allows her to provide guidance and assistance to Telemachus unnoticed, facilitating his quest.