How is reading a work of literature related to your own personal beliefs and opinions?

Reading a work of literature is often related to one's personal beliefs and opinions because when you read something you often connect what you read with what you know and this affects your beliefs and opinions about the book but also about general things, as well as vice versa. Once you read a book, this further increases and changes your stance on certain things. It therefore changes your opinions and beliefs. 

That he feels abandoned 

The answer is focused on because it boils down to the fact means to focus on.