Writing about something with the purpose of proving or disproving, clarifying, reviewing, or judging its merits is writing intended to "inform" since it seeks the truth. Of course "inform" and "persuade" go hand-in-hand quite frequently.
The narrator dies and wants to go back to his previous life but he has to force himself to learn to move on like everyone else
His son was going to war and Brown wanted his son to remember him.