On the Day of Judgment, this world will come to an end. Allah is the Creator of the world and all that is in it. Life in this world is a short trial, and after death, humans will live on into eternity, either in Paradise or Hell, depending on their faith in Allah and observance of His limits.
The purpose of life is the life in the Hereafter, where one will be judged according to their deeds and receive either reward or punishment. On the Day of Judgment, Allah will bring an end to the physical existence of the world, unleashing a chain of disasters and rendering physical laws ineffective.
He has given us life and the world for us to live in. We should remember our duties and responsibilities towards Allah and use this life to make sure we are rewarded with Paradise in the Hereafter. Allah will judge all humans at the end of their lives based on their deeds. The believers will be rewarded in the afterlife whereas the disbelievers will be punished.
Everyone will receive justice and be accountable for their actions in life. Allah is the ultimate ruler of the world and His justice will prevail.
Part 6 of 8:
21. Belief In The Hereafter
22. Faith In The Day Of Judgment
23. The Resurrection
24. The Day Of Judgment.