Amidst the challenges and difficulties that have ever knocked on the front door of our lives, there is a time when reality hits us really hard that teaches us a life lesson. I have learned that life is too short. It is too short that too many questions left unanswered, too many feelings unexpressed, and too many intentions undone. Everything is buried and sealed with regrets of not being able to make up for lost chances. It was a life story stopped abruptly without an ending. We should not repine and wallow too long in this dear temporary life. But we should appreciate every waking moment till it lasts.