Final answer:
The poet uses repetition and epithets to make the poem easier to memorize and reinforce key ideas.
Step-by-step explanation:
The poet uses a literary device called repetition to make the poem easier to memorize. The poet repeats passages that consist of several lines in various sections of the epic. Additionally, the poet uses epithets, which are short recurrent phrases used to describe people, places, or things, and are repeated throughout the poem. These repeated phrases help to reinforce key ideas and make the poem more memorable.