In the Name of Allah, the Most Gracious, the Most Merciful
Man's life is not limited to the short of earthly existence. This world will come to an end some day, and the dead will rise on the Day of Judgment to stand for their final and fair trial. Everyone will appear before the Almighty God and face the consequences of their deeds done in this life. Thus, life in the Hereafter is a continuation of the earthly life but different in nature.
Our Lord! Give us the good life, both in this world and in the Hereafter and save us from the torment of the fire.
Everything we do in this world, every intention we have, every move we make, every thought we entertain, and every word we say, are all counted and kept in accurate records. On the Day of Judgment, they will be brought forth. People with good records will generously rewarded and warmly welcomed to the Paradise of God, and those with bad records will be punished and cast into Hell. The real nature of Paradise or Hell, and the exact description of them are known to God only. There are descriptions of Paradise and Hell in the Qur'an. Paradise, said the Prophet Muhammad, peace be upon him, there are things, which no eye has ever seen, no ear has ever heard, and no mind has ever conceived.
Belief in Life after Death and man's accountability to God gives a sense and meaning to one's life and differentiates human beings from animals.
In fact, if there is no life after death, the very belief in God becomes irrelevant because God would be unjust and indifferent; having created human beings not concerned with cruelty, corruption, aggression and injustice that is going on in this world. God is just. He will punish those who are responsible for killing innocent people, creating corruption in the societies, enslaving thousands to serve their whims. Punishment and reward equal to the evil or noble deeds of people are not possible in this short span of worldly life. Life after death will be eternal and it will be possible to reward or punish the persons to the full extent that they deserve, therefore, belief in the ‘Life after Death' serves as a reminder against crime, corruption, immorality, and injustice on this earth.