A very Magritte-like image of the opposite of what we look through a window for: escape into an ethereal sky. Nihilism like existentialism is a rather pessimistic viewpoint that all traditional values and beliefs are pointless because no objective truth or morality really exists and thus the negative image of looking through a window to see something sensless which makes as much sense as what we consider normal and is therefore as valid as anything in the so-called rational/logical world complies with the surrealistic doctrine of the absurd and illogical completely.