Final answer:
Including the message or lesson learned in a historical narrative helps the reader understand and engage with the story, and provides insight into the importance of the experience/event to the writer.
Step-by-step explanation:
When writing a historical narrative, it is important to include your message or lesson learned because it allows the reader to understand the action of the story and be more engaged in it. By including your message, you are giving the reader a reason to care about the experience or event being described in the narrative. It also helps the reader to know why the experience or event was important to you as the writer.
Learn more about importance of including message or lesson learned in historical narratives