This was the sight that greeted me each morning as I emerged from Waterloo Station, London, during 2016 when I was working with one client. I fancifully took this as an omen of Zoom-Out due to the green eye resemblance to the Zoom-Out Logo: 

Whether is was an accurate perspective – truly an omen – or not, was not the point. Was it helpful? It certainly boosted my mood and motivation to entertain the perspective. It was also a beautiful piece of art (since distorted by graffiti).

Eye at Waterloo. London Rob Aston, March 2017

An omen (also called portent or presage) is a phenomenon that is believed to foretell the future, often signifying the advent of change. – Wikipedia