The Window cleaner

To bring light into a room or illuminate some piece of art you need a window.
At the same time it allows you to see out from a room or have an outlook into the inner life of a painter.
You also have windows of opportunity, when to buy or sell your bitcoins for example, but that is another story.

The idea behind the window that I'm showing here was about keeping it closed at all times, as there are intruders coming closer and closer...in form of our own stupidity.

The better you look the more you see