It's something to do with not seeing what's outside the door... my first thought was that this was at a great height, and I thought "Don't fall" or perhaps "Don't jump!" I realize this may be at ground level, but I had an instant reaction of vertigo.
Great interpretation @keithboone. I knew it was kinda mysterious in a way, especially in mono. Thank you.
It's something to do with not seeing what's outside the door... my first thought was that this was at a great height, and I thought "Don't fall" or perhaps "Don't jump!" I realize this may be at ground level, but I had an instant reaction of vertigo.
your instinct was right out. go to the google map link and see the stairs outside. It is quite a fall!