The words ‘Poetry for poetry’s sake’ recall the famous phrase ‘Art for Art.’ It is far from my purpose to examine the possible meanings of that phrase, or all the questions it involves. I propose to state briefly what I understand by ‘Poetry for poetry’s sake,’ and then, after guarding against one or two misapprehensions of the formula, to consider more fully a single problem connected with it. And I must premise, without attempting to justify them, certain explanations. We are to consider poetry in its essence, and apart from the flaws which in most poems accompany their poetry. We are to include in the idea of poetry the metrical form, and not to regard this as a mere accident or a mere vehicle. And, finally, poetry being poems, we are to think of a poem as it actually exists; and, without aiming here at accuracy, we may say that an actual poem is the succession of experiences—sounds, images, thoughts, emotions—through which we pass when we are reading as poetically as we can.2 Of course this imaginative experience—if I may use the phrase for brevity—differs with every reader and every time of reading: a poem exists in innumerable degrees. But that insurmountable fact lies in the nature of things and does not concern us now. 2 What then does the formula ‘Poetry for poetry’s sake’ tell us about this experience? It says, as I understand it, these things. First, this experience is an end in itself, is worth having on its own account, has an intrinsic value. Next, its poetic value is this intrinsic worth alone. Poetry may have also an ulterior value as a means to culture or 5 religion; because it conveys instruction, or softens the passions, or furthers a good cause; because it brings the poet fame or money or a quiet conscience. So much the better: let it be valued for these reasons too. But its ulterior worth neither is nor can directly determine its poetic worth as a satisfying imaginative experience; and this is to be judged entirely from within. And to these two positions the formula would add, though not of necessity, a third. The consideration of ulterior ends, whether by the poet in the act of composing or by the reader in the act of experiencing, tends to lower poetic value. It does so because it tends to change the nature of poetry by taking it out of its own atmosphere. For its nature is to be not a part, nor yet a copy, of the real world (as we commonly understand that phrase), but to be a world by itself, independent, complete, autonomous; and to possess it fully you must enter that world, conform to its laws, and ignore for the time the beliefs, aims, and particular conditions which belong to you in the other world of reality.