Yeats' "foul rag and bone shop of the heart"

Here is the poem, "The Circus Animals' Desertion" (1939) which that image concludes:

                              I

I sought a theme and sought for it in vain,

I sought it daily for six weeks or so.

Maybe at last, being but a broken man,

I must be satisfied with my heart, although

Winter and summer till old age began

My circus animal were all on show,

Those stilted boys, that burnished chariot,

Lion and woman and the Lord knows what.

                               II

What can I do but enumerate old themes?

First that sea-rider Oisin led by the nose

Through three enchanted islands, allegorical dreams,

Vain gaiety, vain battle, vain repose,

Themes of the embittered heart, or so it seems,

That might adorn old songs or courtly shows;

But what cared I that set him on to ride,

I, starved for the bosom of his faery bride?

And then a counter truth filled out its play,

The Countess Cathleen was the name I gave it:

She, pity-crazed, had given her soul away,

But masterful Heaven had intervened to save it.

I thought my dear must her own soul destroy,

So did fanaticism and hate enslave it,

And this brought forth a dream and soon enough

This dream itself had all my thought and love.

And when the Fool and Blind Man stole the bread

Cuchulain fought the ungovernable sea;

Heart-mysteries there, and yet when all is said

It was the dream itself enchanted me:

Character isolated by a deed

To engross the present and dominate memory.

Players and painted stage took all my love

And not those things that they were emblems of.

                              III

Those masterful images, because complete

Grew in pure mind, but out of what began?

A mound of refuse, of the sweepings of a street,

Old kettles, old bottles, and a broken can,

Old iron, old bones, old rags, that raving slut

Who keeps the till. Now that my ladder's gone

I must lie down where all the ladders start

In the foul rag-and-bone shop of the heart.

This is one of the last poems that Yeats wrote. Looking back over a brilliant  career, as perhaps the last  romantic poet, and one of the greatest, he is inclined to be dismissive of what now strikes him as mere theatricality: 

Winter and summer till old age began

My circus animal were all on show,

Those stilted boys, that burnished chariot,

Lion and woman and the Lord knows what.

As if he had somehow gotten it all wrong and confused dreams, images, metaphors with reality:

Players and painted stage took all my love

And not those things that they were emblems of.

What's left?  Maybe now, "being but a broken man, I must be satisfied with my heart," which sounds promising: isn't that what all poetry, or at least all romantic poetry, is about? But what does it mean to be "satisfied" with one's heart? The heart is an ambiguous organ in some religions and is at least as likely to lead you astray, or tell you what you want to hear but shouldn't, as to put you back in touch with reality. Still, Yeats' meaning here is plain enough: the heart is where a poem starts. What's stunning is Yeats' way of characterizing that place as a junk shop, and not just any junk shop, but a place jammed with the debris of used-up lives, down at the bottom of the economic food-chain, where the only customers are the poorest of the poor and the proprietor—or at least the creature who runs the place—is nothing but a "raving slut." Who but the lowest of the low would want to run—or even enter— such a place?

No one starts out with such a heart; Yeats is talking about something that happens to us all, including poets, as we age: our hearts, like our houses, fill up with junk: worn out ideas, feelings, thoughts, theories, griefs and grievances. And it gets harder and harder to turn this stuff into poetry—to imagine how that might be done, or the price one might have to pay "that raving slut who keeps the till": the heart doesn't give up its secrets for nothing. Its currency is pain, the pain of remembering what one might prefer to forget but can't, the words one wishes one had never said or should have, the failures that can never be undone; remembered pain.

It takes imagination to turn such pain into poetry. That's the trick that Yeats pulls off here, near—very near—the end of his life. I like what William Pritchard has to say about these lines in his wonderful book, Lives of The Modern Poets:

"The final lines from Yeats's very late poem, 'The Circus Animals Desertion' are often quoted as evidence that here, at last, the poet sees through his own enchantment with dreams and images, and after a long career of pursuing them now turns in a radically new direction—inwards, to a more humanly gritty response to the world. But has there ever been a more sensational promise to lie down? We all have hearts, presumably, but only Yeats can call up a 'foul rag-and-bone shop' of one at the very instant when he claims to be bidding farewell to "masterful images." It was a fitting way to end his career of not lying down."