Einstein was aware that sorrow is a part of life. In 1945 he wrote in a letter
For the most part we humans live with the false impression of security and a feeling of being at home in a seemingly familiar and trustworthy physical and human environment. But when the expected course of everyday life is interrupted, we realize that we are like shipwrecked people trying to keep their balance on a miserable plank in the open sea, having forgotten where they came from and not knowing whither they are drifting. But once we fully accept this, life becomes easier and there is no longer any disappointment.
This post is my comment to END OF THE LINE. I can’t find the words better.