I don't know I didn't see the poem
Answer:
They both Use some sort of energy. the sun uses Radiant/light energy
The primary conflict in the Colomber by Dino Buzzati was when Stefano wanted to be a sea captain but cannot because of a belief that those who saw Colomber is doomed to death.
He was not able to pursue his passion because of his and his father's fears.
The fourth answer; to get people to think.