Thus with continued concentration and the expenditure of enormous amounts of energy he tried to keep himself from slipping into the vast distances of his unhappiness. It was all around him. It was a darkness as impudently close as his brow. It choked him by its closeness. And what was most terrifying was its treachery. He would wake up in the morning and see the sun coming in the window, and sit up in his bed and think it was gone, and then find it there after all, behind his ears or in his heart.
E.L. Doctorow, Ragtime
depression, sadness