L.S. Harris in The Nature of English Poetry informs us that there are only two things to consider when criticising poetry: the poem and yourself. "Your only means of judging a poem is the effect it has upon you; so if you are to be honest and clear you will have to write about yourself a great deal."
So the first question to ask is, ‘What effect does the poem have on me?’, the second, more difficult, is: ‘Why?’
Why do I like or dislike it.? Does it please my ear? Is that good enough? Do its statements impress me? Do I understand them, or are they purposefully vague? Either way, am I affected or pleased by them? Does the poem appeal to reason ? Is it the images that I find most appealing? Perhaps it’s the combination of thoughts, images and sounds that produce the impact, where one without the others would produce no effect?
If you’re not sure what it is about the poem that appeals, try removing an image, or a sound. Find the words that introduce new feelings into the poem. Sadness. Mirth. Irritation. Or those that jar you, or make you swoon, laugh or cry; then check the effect. Still the same?
Many times these feelings, likes or dislikes, will be stirred by reasons unrelated to the poem itself. Perhaps you like the place the poem describes, or the animal. Perhaps you were in a happy head space when you first encountered the poem – falling in love? Perhaps your grandmother first read it to you in her warm cosy living room; or in her country-side garden. Or maybe it’s the book in which the poem is bound. Its smell, touch, illustrations. Or perhaps you hate the poem because an ignorant teacher once tried ramming it down your throat, or made fun of you in front of the class for not understanding it.
Try then to isolate these experiences. Mention them, but make clear that they are personal reasons for reacting to the poem in the way you do; reasons which may distance your response from the response of others.
Regardless, says L.S., regardless of how much you may know about rhythm and prosody, no matter how much you may know about theories of poetry, when you judge a poem, you must trust your own feelings. Those who set about criticisizing poetry with a foot-rule, or a set of proportions and qualities which they think every poem ought to exhibit, end up making themselves ridiculous. As do those who, ‘like men who tap the wheels of a train before it sets out on a long journey’ look out for flaws before they have read the poem, condemning false rhymes, insisting that each line must contain definite numbers of sylllables according to strict rules.
Irregularity of rhythm can, for example, as often as not be a virtue as a fault. The whole poem, and its effect must first be considered, for the effect, rather than any rule, or fact, is the essential component of a poem.
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Do those who set about criticising poetry or literature based on a set of qualities or rules make themselves ridiculous?
What of merit? If a jury arrives at a unaminous decision, surely, in evaluating why all choose the same winner, after isolating and excluding personal experience, there must be a set of common reasons that can be identified which explain how one entry emerges victorious over the others? And can’t one of these reasons be that the winning entry breaks rules and exhibits original qualities?