'Qiyamah' is coming
Islam teaches us that every soul shall taste death. After a person’s death, his soul will reside in a world different from ours, called “Barzakh” until the Day of Judgement (Qiyamah). On that day, everyone will be gathered by Allah for the final account. The good believer will go to heaven while the bad servant will go to hell. To believe in this is a pillar of our faith (Iman). Therefore, a believer must learn about this subject and have conviction in it.
But to be precise, you must understand that each person shall witness his own Day of Judgement, and he will be among the group of his time, at the moment of his death. For example, in everyday life, we often learn of a calamity or other that has arisen and has made hundreds or millions of deaths. So, for these people, it’s their last hour on earth and they will face their Last Judgement after going through the “Barzakh” and from there on they will know their final destination.
“But those who disbelieve say, ‘The Hour will not come to us.’ Say, ‘Yes, by my Lord, it will surely come to you’.” (Saba, 34 : 4).
Non-believers in general, apart from religions which were originally monotheistic, such as Judaism and Christianity, do not believe in life after death, in the Last Judgement because most of them believe that their life on earth is their only life and death will mean a definite end to their life, while others believe in reincarnation, i.e., they will be resurrected in different bodies, be it in human or animal form, and that they will return to earth again and again, instantly, or centuries after their present death. These conceptions about life and death that they hold are really wrong.
The Six Pillars of Islam
As Muslims we need to know and understand that our faith (Iman) rests on six pillars; Our faith in: Allah, His angels, His Books, His Messengers / Prophets, the Last Day of Judgement and Fate/ Predestination/ Destiny – and the fact that good and evil come through the knowledge, law and the creation of Allah, and the firm belief in life after death (the Resurrection) which are each an indisputable truth.