Our time in this life is limited to some years. And after this the time of grave begins without delay. The soul leaves the body and continue its existence in a spiritual realm of waiting for the Judgment Day (Akhirat).
Is There Proof for Eternal Life?
One of the proofs of eternity given to us by God is the infinity of numbers. The counting never comes to an end when you count, there is always a greater number infinitely. This is an ayat created by God to make us understand the life is eternal. There are stops, but these stops don't end the existence of a particular body.
First stop is death. Second stop is resurrection of all dead people in Afterlife in the appointed time set by God and only God knows when it will happen. After resurrection, the Day of Judgment will start. The Day of Judgement is also the start of infinity without stops. Life in Afterlife will never end.
Just like numbers. Therefore the infinity of numbers is an ayat by God for us to understand endlessness.