Answer:
The two lines in the poem which help the readers to determine the theme of the poem are: A life on the ocean wave / A home on the rolling deep.
Explanation: The lines determine that the life is on the ocean and the home lies above the depth of the ocean. Time passes by glimpses of the water.
The story of ''Homesick" written by Jean Fritz was narrated from first person point of view. Author used this way to describe the story in order to put a reader in the main character's shoes. In other words, the effect of this point of view is that a reader receives information right from the main character through that character's eyes. Characters always appeal and speak to reader using pronoun "I".