Hey, I would be able to wander this if you added the poem. It’s asking about the poem, but you didn’t give it to us. So we cannot answer this question.
Has is used alongside the PRONOUNS <em>H</em><em>E</em> / <em>S</em><em>H</em><em>E</em> / <em>I</em><em>T</em> and <em>W</em><em>H</em><em>O</em> and SINGULAR NOUNS.