Answer:
The three lines that show the impact of great poetry are lines 3,4 and 5.
Step-by-step explanation:
Marianne Moore believed that poetry should not be empty, on the contrary it should fill the soul and body of the reader in a genuine way. On lines 3,4 and 5, Moore shows what happens when poetry touches someone in a genuine way, that is, these lines show the impact that great poetry has on people.