When you are waiting for something, a change, an answer, a decision, an outcome, it can be almost like the world is holding its breath.
Sometimes the World of Tranquillity can be a true blessing, a time to recover after a period of intense work for example.
Sometimes it can be be like the dying notes of a moving piece of music or the fading echoes of the most magnificent firework display.
Maybe the biggest difference between the two is whether you wish for Tranquillity or not.
If you do wish for it, Tranquillity can be the most restful of time, if not it can be like the quiet of the grave, peaceful but not something which you might actively desire.