Soto’s visual investigation implies a strict enquiry into the vibration of surfaces and the repetition of components. It aims at freeing him from the conditioning of traditional form and composition concepts in order to make an approach of pure abstraction possible. The method of programming serial works allowed him to carry out a work without end, by possibly repeating the repetition. He also explored the universe of 'relations', relations between components, materials and movement that always included the notion of space. Soto was interested in a visual dynamism that evolves through the movement of the viewer in front of the picture: ‘Space flows: nothing limits it (…) In fact it is space that is in control, it defines and sets conditions’ (Soto in an interview with Hans Ulrich Obrist, 2005).