Have you ever thought about the fact that you did not exist before you were conceived and then born into the world and that you have come into existence from mere nothingness?
Have you ever thought about the possibility that while you are asleep a sudden earthquake could raise your home, your office, and your city to the ground and that in a few seconds you could lose everything of the world you possess?
Have you ever thought about why people are so attached to a world from which they will soon depart when what they basically need is to strive for the Hereafter?
Have you ever thought of how your life passes away very quickly, and that you will grow old and become weak, and slowly lose your beauty, health and strength?
Have you ever thought about how one day you will find the angels of death appointed by Allah before you and that you will then leave this world?