Notions of space, vision and light run through the abstract art of the 20th century and interest many world renowned contemporary artists such as Ann Veronica Janssens, Anish Kapoor, John Armleder, Carsten Höller, Philippe Decrauzat, Jeppe Hein, Felice Varini and Xavier Veilhan. The current exhibition at le Grand Palais, Paris, Dynamo, is about that and it's really inspiring.