Last week you were part of something nearly miraculous. I’m writing so that when you feel like the world is hopeless and there is just no use trying, you can remember and keep pressing on.

For a while we thought graduation day would not happen for your class. When you left for home that random Thursday in early March you had no idea you would never walk those high school halls again. There was no prom, no sports, no final pep rally or yearbook signings. They set a tentative date for graduat...