A very profound words @arthuradamson, that's what it says with a life. Sometimes it happens not like what we want. As you said about "Even after a life full of history, life is still a mystery". Like a past you say, everyone in the world has a past, but it will be a memory for our lives. But most importantly we must be ready to welcome the future. Let the past go by. Thanks @arthuradamson, and hopefully you will be more successful to work