It means he does not write to solve problems, he writes about the problem itself.
Answer:
Yes it is because the subject and the verb both agree.
Explanation:
The poet describes how he feels, at times, how all the misery and pain of the world is inflicted on him solely. He is greatly familiar with this impression of disappointment and even depression, and wonders and ponders why of all people it had to happen to him? But he does not realize how it's not just only him, as many people would conclude about themselves. This poem shows how most people believe they are battling with themselves alone yet they are not.
