In the early afternoon, I often catch myself listlessly staring into the computer screen. I have things to do, but I can’t concentrate. I try writing the same sentence five times and delete it six. During one of these afternoon torpors, I came upon a word: acedia. It seemed to perfectly define my mid-afternoon weariness. I discovered this originally Greek word was widely used by medieval Christian monks to describe a sense of indolence, a mood of lethargy, a feeling…