Meaning: The book gave her a new perspective on life.
Choice of Words: "Opened" means to make or become open. "Eyes" are the organs of sight. "Her" refers to a female person.
Alternative Expressions
The book was an eye-opener for her.
Meaning: This means that the book helped her to see things more clearly or to understand something better. It's like saying, The book changed her way of thinking.
Choice of Words: The book is an object that contains written or printed information. Eye-opener is a noun that means something that makes you see or understand something in a new way. Her refers to a female person.
The book enlightened her.
Meaning: This means that the book helped her to learn new things or to understand something better. It's like saying, The book made her smarter.
Choice of Words: The book is an object that contains written or printed information. Enlightened means to give someone knowledge or understanding. Her refers to a female person.