Tunnel vision can be good or it can be bad. It can be great to have extreme focus on a goal at one end of the spectrum. But, it can be bad in life or business if you focus too much on one thing and lose sight of all other people or things around you.
I took this picture while driving through a tunnel today. I don’t recommend doing this! But I was attracted to the movement of the walls ( or more correctly, my movement past the walls) and the green lights. The photo reminds me to keep focus on what’s important in life (and driving) because it all goes by so quickly. Please drive safely!