Because

I am not a religious person. You know that.
You may not know that my grandfather was a Reformed Presbyterian preacher. They don't have accompaniment in church (no organ, piano). But what I most remember about the times I spent with my grandparent are the Psalms they sang. Before meals at camp. At church. Sometimes when I listen to Garrison Keillor I get a bit of what I remember from those days.
Today when I found out that my friend Craig had most likely died, the words of some of those songs came back. I think when we don't know what to say or do, familiar words return to us most strongly.
I thought of this "I lift mine eyes unto the hills."
Maybe they will make you feel better also.