As with any author's decision to use 1st person, her intention most likely -- in this story -- was to get her readers to go along for the ride into madness and cultivate a certain amount of sympathy for the narrator and her plight. The constant use of "I" puts readers in the narrator’s head and allows them to empathize with her.
Here are a few it’s not a lot.... but if you ask your English teacher she should be able to help ....
If this is the passage: "<span>At four hundred miles they stopped to eat, at a thousand miles they pitched their camp. They had traveled for just three days and nights, a six weeks' journey for ordinary men. When the sun was setting, they dug a well, they filled their waterskins with fresh water, Gilgamesh climbed to the mountaintop, he poured out flour as an offering and said, "Mountain, bring me a favorable dream."
Then the answer is: A journey filled with many challenges. At this point of the Epic, Gilgamesh has embarked on a journey to find </span><span>Utnapishtim, the wisest man on earth, to ask him about the eternal life. Such journeys are an indispensable feature of epic poetry. They drive the action forward and provide context for more adventures and occurrences.</span><span>
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