Hello. You did not inform the novel to which this question refers, which makes it impossible for it to be answered accurately. However, I will try to help you in the best possible way.
To answer this question, you will need to read the point of the novel to which it refers. Next, you must identify the lesson that this text wants to convey. This lesson is the message, which the question refers to and you can identify it, asking yourself things like "what is this text about?", "What is the author referring to?", " which element of real life is being discussed in the text? ".
Once you discover this message, you must assess whether the author presented it in an impactful way and capable of generating a reflection in the reader, if yes, the author was successful in conveying the message.