Same is the case with our lives. Through ages God is playing this Chess Game with us. He puts us on this Chess Board called "Earth" & makes His moves through all of us so that His game goes on. We all are just puppets of God on this Chess Board called "Earth". Slowly, one by one, people are Checked Out (die) & again God plays this game with His new people (new one's born). In this way God's game is going on since time immemorial.
Just see that in Egypt, you find tombs of Kings & Queens in Pyramids which date back to many centuries ago. In Taj Mahal in India there is tomb of Shah Jahan & Mumtaz Mahal who were King & Queen of their times. So where have all of them gone? They were very much real people like you & me in their times but now their Chess Game is over. At their time, they were King, Queen & they were having their own "life real" rooks, knights, pawns etc. That army of people used to serve them in their times but all of them were checked out from the Chess Board i.e. all of them have died with their army of people. Now new players are on the Chess Board.
So anyone who is born on this earth is sure to die. We are here on this earth for a limited period of time after which we need to leave this earth. So let's not get attached to things in life too much. Below verse of Bhagwat Gita explains that only:
"jatasya hi dhruvo mrityur
dhruvam janma mrtasya cha
tasmad apariharye ’rthe
na tvam socitum arhasi" (Bhagwat Gita: Chapter Two verse 27)
"Sri Krishna said: One who has taken his birth is sure to die, and after death one is sure to take birth again. Therefore, in the unavoidable discharge of your duty, you should not lament."
In Fact we all become so much involved & busy in our life on this earth that we all forget that one day we all have to leave this earth, leave this body. Our Life is not permanent on this earth & it is for a limited period of time after which it shall pass away. Transient nature of life is aptly described in below few lines of the Persian Poet, 'Omar Khayyam' :
'Lo! some we loved, the loveliest and the best
That time and fate of all their Vintage prest,
Have drunk their Cup a Round or two before,
And one by one crept silently to Rest. '
Lo, here were all those our near & dear one's, whom we loved the most & are gone now. Wine of life that used to flow through their mortal body has gone. Time & fate ( karmic law of cause & effect) has acted in their case & after drinking a Cup or two (of life), they have departed from this earth & have died a short or long before us. So shall be the fate of our self also & we shall too some day depart after drinking a Cup or two.
So instead of letting time & fate rule our destiny & lead us to death, why not let God immortalize us. So let's remember & pray to God daily, let's know Him daily so that God can bless us with the immortality