He uses humor, as conveyed with the multitude of colors
Is that a poem?
If it is the one about the fire and the boys. Then the speaker doesn’t like his father in the beginning because he isn’t able to play with his friends. At the end he is grateful because the boys got in trouble and he wasn’t involved.
Sergei is an altruistic person. He had never used his wished for himself, but he had given his wish for others. He had wished that his sister would be cured of cancer, which was in a terminal stage. He had longed for a friend and had found one in Yoni.
In your essay give specific details and don't vague if it is not related to the topic you are writing about, is not important.