I first saw this image on a blog called Power of Mortality: it's a picture of 936 "blobs" or dots that represent the average number of months in a person's life. Seeing it visually is very powerful - it caused me to really question what I'm doing with the minutes, days, and weeks contained in each little dot. Click on the image to see it closely for yourself:
As Patrick, author of Power of Morality, puts it: "Remember that 936 is just the statistical norm. It’s not a number that you are guaranteed, owed or otherwise entitled to."