So Edward Krasiński described his 1964 performance Spear.
Krasiński (1925–2004) was one of the most important artists of the European post-war avant-garde, whose work ranged from sculptures to immersive installations. He sought to reduce sculpture to a mere line, best epitomised in his use of blue adhesive tape: ‘I place it horizontally at a height of 130cm everywhere and on everything.’ This included his Warsaw studio, which has been preserved as he left it.