The most sensational surprise was the sudden discovery, one day, that my pictures, for the first time in history, had become walls. By means of what … - Antoni Tàpies

In: Tàpies, Werke auf Papier 1943 – 2003, Achim Sommer, Kunsthalle Emden, Altana 2004, p. 26

Later came 'the hour of solitude'. Inside my tiny bedroom-studio, I began my forty days in the desert; I do not know if they are over yet. With a desperate, feverish rage I took formal experimentation to maniacal levels. Each canvas was a battlefield where wounds multiplied ad infinitum. And then came the surprise. All that frenetic movement, all that gesticulation, all that unending dynamism, by dint of the scratches, blows, scars, divisions and subdivisions .. ..suddenly took a qualitative leap. My eye no longer perceived differences. Everything congealed in a uniform mass. What had been ardent ebullition transformed itself into static silence. It was like a great lesson in humility for the pride of my unbridled quest.

All the walls of a city, which, by family tradition, seemed so mine, witnessed the martyrdom and the inhumane repression inflicted on our people. Cultural memories stressed its urgency. All the archaeological information I have absorbed, the advice of Leonardo da Vinci, the destruction brought about by Dada, the photographs of Brassaï, all contributed, unsurprisingly, to the fact that my first works of 1945 had something to do with street graffiti and a universe of repressed protest, clandestine yet full of life, as one could find on the walls of my country.