maybe because it is that year in an individual's life when him or her decides to finally retire from their regular duties and choose to spend time for themselves, or maybe because people of the age will enter a completely new phase in their life. prepare dinner till the hen is totally cooked and the juices run yellow and never pink when pierced with a small, sharp knife. there you have it, some reasons why sadness is important in our lives; how it serves us for good reasons. 