They have to bring a string of shells
1. I believe its youthful energy and life.
2. Repetition? Not sure.
3. The "fire in my head" symbolizes the intense drive to go fishing.
4. The mood is defiant. He will prove the reader wrong by finding her.
5. It establishes a mournful, weeping tone.
This means that sometimes what actually happened historically will be warped to make one side seem more righteous.