Answer:
The quote means that it is not correct to give excessive levels of importance to people, making them what is most important in life.
Step-by-step explanation:
Hello. The quote mentioned above was taken from the book "The Perks of Being a Wallflower". This quote refers to the moment when Charlie's sister is criticized by her mother, for saying that her b0yfriend represents the whole world to her, that is, he represents what she has most important, what makes her exist. Her mother complains about this kind of thinking because it is not healthy to give this kind of importance to anyone in the world, not even her own family. This type of thinking generates dependence and leaves people stuck in negative and harmful relationships.
"The Perks of Being a Wallflower" tells the story of Charlie, a lonely boy who manages to befriend two brothers and mature in relation to other matters, including a childhood trauma that he has been carrying for years.