Answer:
Since you didn't specify the lines, I'll explain what the whole poem is about.
Explanation:
In Leaves of Grass we will find several poems by the poet Walt Whitman. Each of them mentions issues related to war, body, soul and loss among others.
Whitman wrote and modified this throughout his life, publishing the definitive edition in 1891.
In the first part we find a general aspect of what the work is about and there we find the title "One's-self" where Whitman not only talks about himself but also encourages the reader to find himself. Here we will find poems related to politics and society.
Then he continues narrating the poems chronologically starting with his childhood and his inspiration in poetry.
He will also describe himself in "Song of Myself" where he continues to narrate more of his life, as well as the wishes of each person.
Other topics that Whitman also touches on are sexual diversity and love between men, the understanding of the soul through the body, nature with each of its elements, the relationship between the past, the present and the future and the acceptance of death.
Answer:
The answer is: An informal idiom
"Buy, sell, and trade on the Internet, and become a millionaire overnight!" is an example of a Snob Appeal propaganda technique. A snob appeal is a technique wherein it involves an assertion that you must think and act in a certain way in order to attain a high social status brought by the action. In the given example, it means that if you join them and buy, sell, and trade in the internet, you will attain a high social status which is being a millionaire overnight.