Answer: supernatural elements
a difficult journey with trials
a hero showing perseverance
Explanation:
When Zeus the lord of cloud roused in the north a storm against the ships, this showed supernatural elements.
"The bows went plunging at the gust; sailscracked and lashed out strips in the big wind. We saw death in that fury, dropped the yards... " implies a difficult journey with trials.
In the end, putting put up the masts, hauled sail, and rested, letting the steersmen and the breeze take over implies a hero showing perseverance.
