Picasso now had his subject:

‘It was an enormous canvas, so large that Picasso needed a ladder and brushes strapped to sticks in order to paint its heights… Working from the ladder when he needed to, and sometimes on his knees, the artist began to paint on May 11, 1937, and he did so with a hot and focused intensity that was unusually keen even for him. He was determined to transform the vacant canvas into a monumental mural that would disturb and shock its viewers, reminding them … that people similarly suffered unimaginable terror in every place and time.’

‘Guernica’ as both place and painting became a symbol of a technological sublime terrifyingly different from that anticipated by the organizers of the Exposition Universelle. It was a sort of imaginative counter-geography that wrenchingly displaced the complacent Euro-American fiction that aerial warfare was always waged in ‘their’ space and that its horrors could remain unregistered.

But, as you can see, I said remarkably little about the canvas itself.  And I confess that when I finally stood in front of it in Madrid I continued to struggle with the composition.

In a wonderful essay on ‘Picasso and Tragedy’ in this month’s London Review of Books T.J. Clark has come to my aid – not least because he flips my uncertainty about the composition into a careful consideration of its spatiality.  First, this:

What marks Guernica off from most other murals of its giant size is the fact that it registers so powerfully as a single scene. Certainly it is patched together out of fragments, episodes, spotlit silhouettes. Part of its agony is disconnectedness – the isolation that terror is meant to enforce. But this disconnectedness is drawn together into a unity: Guernica does not unwind like a scroll or fold out like a strip cartoon (for all its nods to both idioms); it is not a procession of separate icons; it is a picture – a distinct shape of space – whose coherence is felt immediately by the viewer for all its strangeness.

‘Space’ is shorthand, I recognise. In the case of Guernica, what seems to matter most is the question of where the viewer is standing in the bombed city. Are we inside some kind of room? There are certainly walls, doors, windows, a table in the half-dark, even the dim lines of a ceiling. But doesn’t the horse opposite us look to be screaming in a street or courtyard, with a woman holding a lamp pushing her head through a window – a filmy curtain billowing over her forearm – to see what the noise is outside? Can we talk of an ‘outside’ and ‘inside’ at all in Guernica? Are the two kinds of space distinct? We seem to be looking up at a room’s high corners top left and right, but also, above the woman with the lamp, at the tiles on a roof. There is a door flapping on its hinges at the picture’s extreme right edge, but does it lead the way into safety or out to the void? How near to us are the animals and women? If they are close by, as appears likely, looming over us – so many giants – does that proximity ‘put us in touch’ with them? Does proximity mean intimacy? How does the picture’s black, white and grey monochrome affect our looking? Does it put back distance – detachment – into the scene, however near and enormous individual bodies may seem? Where is the ground in Guernica? Do we have a leg (or a tiled floor) to stand on? Literally we do – the grid of tiles is one of the last things Picasso put in as the picture came to a finish. But do any of the actors in the scene look to be supported by it? Does it offer viewers a foothold in the criss-cross of limbs?

The reader will have understood that the best answer to almost all of these questions is: ‘I’m not sure.’ And spatial uncertainty is one key to the picture’s power. It is Picasso’s way of responding to the new form of war, the new shape of suffering.

And then this:

Guernica is a tragic scene – a downfall, a plunge into darkness – but distinctively a 20th-century one. Its subject is death from the air. ‘That death could fall from heaven on so many,’ Picasso told an interviewer later, ‘right in the middle of rushed life, has always had a great meaning for me.’ A great meaning, and a special kind of horror. The historian Marc Bloch had this to say in 1940:

The fact is that this dropping of bombs from the sky has a unique power of spreading terror … A man is always afraid of dying, but particularly so when to death is added the threat of complete physical disintegration. No doubt this is a peculiarly illogical manifestation of the instinct of self-preservation, but its roots are very deep in human nature.

Bombing of the kind experimented with in April 1937 – ‘carpet bombing’, ‘strategic bombing’ ‘total war’ – is terrifying. Because the people on the ground, cowering in their shelters, may imagine themselves suddenly gone from the world – ripped apart and scattered, vanished without trace. Because what will put an end to them so completely comes out of the blue – Picasso’s ‘from heaven’ – and has no imaginable form. Because death from now on is potentially (‘strategically’) all-engulfing: no longer a matter of individual extinctions recorded on a war memorial, but of whole cities – whole ‘worlds’, whole forms of life – snuffed out in an hour or so.

And finally this:

We could say that the nowhere-ness and isolation in Guernica are what terror – terror with von Richthofen’s technology at its disposal [he called it ‘absolutely fabulous’] – most wants to produce. It is the desired state of mind lurking behind the war-room euphemisms: ‘undermining civilian morale’, ‘destroying social cohesion’, ‘strategic bombing’, ‘putting an end to war-willingness’. But surely Guernica would not have played the role it has for the past eighty years if all it showed was absolute negativity. It is a scene, after all, not a meaningless shambles. It presents us, at the degree zero of experience, with an image of horror shared – death as a condition (a promised end, a mystery) that opens a last space for the human…

It is difficult, maybe impossible, to describe what is happening here without one’s language tipping into the falsely redemptive. Nothing that takes place in Guernica, to make my own feeling clear, strikes me as redeemed or even transfigured by the picture’s black-and-white reassembly of its parts. Fear, pain, sudden death, disorientation, screaming immediacy, disbelief, the suffering of animals – none of these realities ‘falls into place’. Judith Butler in a recent essay, looking for a basis on which a future politics might be built, asks her readers to consider the idea of a collectivity founded on weakness. ‘Vulnerability, affiliation and collective resistance’: these, she argues, are such a commonality’s building blocks. I believe that Guernica’s usefulness – its continuing life in so many different contexts – may derive from the fact that it pictures politics in much the same way.

My extended extracts don’t do justice to the richness and the subtlety – nor the passion – of the original, which is easily the best essay I’ve read all summer – and long before.

So, two resolutions: I want to go back to Madrid; and I want to say much more about Picasso’s unsettling composition and its continuing resonance in my next book, Reach from the sky: aerial violence and the everywhere war.