Generally speaking, rhyme is the marker for the end of a line. The first rhyme-word is like a challenge thrown down, which the poem itself has to respond to.
James FentonWriting for the page is only one form of writing for the eye. Wherever solemn inscriptions are put up in public places, there is a sense that the site and the occasion demand a form of writing which goes beyond plain informative prose. Each word is so valued that the letters forming it are seen as objects of solemn beauty.
James FentonWhen we study Shakespeare on the page, for academic purposes, we may require all kinds of help. Generally, we read him in modern spelling and with modern punctuation, and with notes. But any poetry that is performed - from song lyric to tragic speech - must make its point, as it were, without reference back.
James FentonThe voice is raised, and that is where poetry begins. And even today, in the prolonged aftermath of modernism, in places where "open form" or free verse is the orthodoxy, you will find a memory of that raising of the voice in the term "heightened speech".
James Fenton