Read the excerpt below and answer the question.

There was a child went forth every day;
And the first object he look'd upon, that object he became;
And that object became part of him for the day, or a certain part of the day, or for many years, or stretching cycles of years.

In this excerpt from "There Was a Child Went Forth," the use of repetition helps illustrate the _____.

passage of time
difficulty of aging
influence of culture
importance of materialism