Plato's quote suggests that death is not the most dreadful thing that can take place to an individual. He indicates that there are other things that can be worse than death. He might be describing the suffering that can originate from living a life of distress or despair. He might also be referring to the pain of losing a loved one or the regret of not having attained one's objectives. Plato's quote encourages us to concentrate on living a significant life, rather than fretting about death. He motivates us to make the most of our lives and to pursue happiness and satisfaction. He reminds us that death is inescapable, but that it is not the worst thing that can happen to us. We can still take advantage of our lives and pursue a life of happiness and satisfaction.
"Death is no more than passing from one room into another. But there's a difference for me, you know. Because in that other room I shall be able to see"