This is an example of dramatic irony. Dramatic irony is when the audience is aware of what's happening but the characters aren't.
What Lara could do is get glasses so she can see better and not be going and making her life harder. she needs to wear glasses to stop getting hate and be getting her grades perfect but she is kind of feeling sad because they make fun of her but she needs them if not she’s risking and making her life harder, and she might look better and her friend can help her and that will be easier and she will think it’s easier and happier and awesome glasses and if she keeps on thinking that they will laugh at them she will not want them. but if she thinks that she will look good she will wear them all the time ((((sorry if wrong))))
Answer:
Grendel terrorizes Heorot because he is jealous of people's happiness. His jealousy takes advantage of him, and he decides to attack Heorot.
This quote means that whoever wrote this quote thinks that people who are dead (which is what he means by inhabitants of the deep) are a lot more happy than him/her.
