CNN posted this photo today. It is said to show a line of 320 climbers waiting their turn on the peak of Everest. I can hardly imagine what it must be like to put in all the blood, sweat and tears to get so close and then have to stand on a very precarious ridge for hours to claim your two seconds of glory at the top of the world.
The metaphor part is that a lot of life is like that.
The link may or may not work: https://www.cnn.com/2019/05/24/asia/eve ... index.html