We are not everlasting. One day it comes that we all would die. Death is destined for every person. When an infant is born, Allah would employ an angle to ask Him questions about the infant's destined events. One of the questions this angle would ask is: O' Allah when would be the exact death time of this infant? Then the angle would record Allah's answer to the question in the book of destiny of that infant. This tradition is recorded among traditions of Prophet Muhammad [s.a.] in the book of "Nahj ul Fasahah". A 24 storey building in London caught fire after an old fridge was burst and the fire spread through the high rise building and burnt all the plastic claddings, which were covering all the exterior of that 24 storey building. A father holding his infant with his wife and their children were running to get out of the building. The infant died of poisonous fumes of this horrible fire. The recording of the messages [SMS] sent by mobile phones to relatives and friends shows how the death time of most inhabitants of this 24 storey building was set by Allah at birth time of those dead ones and no one knew when that death time would happen except God!!!
Read the messages the high rise building inhabitants sent by mobile phone at their death time to feel how it looks like in our death time?! We would be caught instantly by an event set in our destiny to leave this world to hereafter. At this point we would think: Could we live a better life for a better purpose? If we knew the death time for ourselves, could we live a different life style than what we chose to live in this world? Sure there is answers in Islam to these questions and one is to think about the right sect, religion, way of life, the TRUTH as a milestone of the project of life!!! It is too late when the death surrounds us with nowhere to go, and there was no one except Allah at the instant when the high rise building caught fire in London to help those who did not survive the fire...This fact that there was no one except God to help the inhabitants to survive, proves Death is destined at birth time, and at death time, there is no one except Allah to help us survive the panic situation we are caught by!
That is why it is important to set up your "beliefs flag" into a firm sand with concrete foundation, not to blow away in strong winds! It is important to believe in God and a survivor, who is the only strong and powerful existent, who can give you hope for better life after death. He only gives you a better life, if you look for Him during your worldly life and not right at your death time?! You should be prepared for the minute your life is going to be taken away from you by God. You had better do good deeds and pack your suitcase with bunch of good deeds and lock it, waiting for the instant which you never know when it would be, then you be sure to enter the Garden of Paradise after death.