Final answer:
The phrase 'a new world that became a friend and liberator of the old' is an example of personification, where the 'new world' is described with human characteristics.
Step-by-step explanation:
The phrase 'a new world that became a friend and liberator of the old' is an example of personification, which is a type of figurative language where human qualities are given to objects, animals, or ideas. In this instance, the 'new world' is being personified as a 'friend and liberator,' suggesting it has the ability to act with intention and effect change, much like a person does.
Personification is commonly used in literature to evoke emotion and provide vivid imagery, making abstract concepts more relatable and easier for the reader to connect with on a human level.