what according to wordsworth should be the themes of poetry ? how does he elaborate on the use of metre and simplicity of language?

Wordsworth believes that the themes of poetry should chosen from things that occur in real ife, and that these things should be described in common language. In other words, written the way in which we really speak. In addition, these themes should be presented in an unusual or alluring fashion, making them seem even more interesting than they really are.