A friend from work sings this at our Church. I recently learned that she sang it at the funeral of her own brother, who was died tragically and too young in an automobile accident. I asked her how she could do that. She said she knew she couldn't cry and sing at the same time, so put everything she had into keeping composed to sing it. She clasped her hands behind her back, and someone held her hands and she got through the song. As she finished the last note, she turned to thank the person who had supported and encouraged her during this difficult time.
There was nobody there.
I cannot get through this song with dry eyes -- couldn't even before she told me that, and now I never will.