From time to time I just stare at the sky. I lose myself in that ocean of blue. The intoxication that overcomes me at such moments is close to the trance I enter into when I listen to some of Ludwig van Beethoven’s compositions. His Piano Sonata No. 3 in C, Op. 2 for instance. A few weeks ago I enjoyed the evening light in front of our house. The sun had already disappeared behind the trees and we were waiting for the bats to come out and flutter around. The blue hour.