Life
Life is fleeting. Not until you see your fugaciousness, you see that every day, every hour even every moment is a gift , a gift you can only open for one time. A gift that can delight you only one time. You find out that workaday issues basically do not have a real importance. You will find out that you should capitalise every day, every hour and every moment, because no moment comes back. The life, every day, every hour, every moment is a gift, because we are all fading. Along the line we all will end to exist and could not ask ourselves "what if..."
Live life to the fullest.