What idea about human nature or life is the author trying to express through the characters or events? what does he have to say about happiness through sergei’s situation, actions and the outcome of events? answer in the text box provided.

Believe you are talking about the Sergei in the “What, of This Goldfish, Would You Wish?” If that's so, then the theme about happiness presented here is that people hold onto different things for their happiness. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 

No matter how tough the day is, GOD is there for you, and you will make it through. The next day is a new day, and everything will be fine. The bad will pass, and more good will come. There will always be troubles, but it's ok. U will get over it.

Explanation:

That doesn't help anyone or anything.

Sorry the Christian part of me came thru lol.

Have a great day