I'd say that all of these elements (Odysseus is returning to his home, Ithaca. He runs into a fierce storm. He has many adventures. He makes his way home.) are about D. heroism.
He managed to survive all of these events to return home to Ithaca.
The answer to your question is


The author is giving details and purpose to this event and is inviting people to come to attend it. They even tell you how you can get to the event and about the designated "drop zones".
I hope this helps you!