Death and the nature of afterlife, have always been mysterious to human beings. Everybody is willing to either find it out himself or to have faith in what has been said and discovered about it. Muslims seek the answer in the Quran, the holy book they believe in. In Quranic thoughts, death is nothing but the transfer of the human soul from the natural universe to the spiritual world, going back to the one who created it all, i.e., God; “Indeed we belong to Allah, and to Him do we indeed return” (2:156).

According to the Holy Quran, death is no inexistence or destruction, But a threshold to the next stage of life and existence. However, it is noteworthy that what forms the exact nature of humankind is not the physical and material composition that disintegrates and gets destroyed after death; in fact, our real self is made up of our soul that is seized and released from the captivity of the body and then returns to its origin, the Divine presence, God.

Therefore death in the Islamic viewpoint happens when the immortal soul or self of a human cuts its attachment and relationship from the body and consequently, the body perishes while the soul continues its life without it.

“Say: You will be taken away by the angel of death, who has been charged with you. Then you will be brought back to your Lord” (32:11).

Life after Death

Now one might wonder what happens to us after death; are we going to begin our lives in the hereafter right away, or we will experience a different temporary stage of life that lasts up until the Day of Judgment?

Muslims get the information about this issue, through revelations received by the last Prophet, Muhammad (PBUH), in verses of the Quran. Based on what has been revealed to our prophet, the afterlife does not begin right after we die. Human beings will enter an intermediate world called “Barzakh” in which they would feel, see and hear everything differently; there would be things they enjoy and ones they suffer from, based on their deeds in this earthly life. In short, man will go through two different stages of life after death; one temporary that is to come right after death, and one that lasts forever and will never end.

The Intermediate World (Barzakh)

“…And ahead of them is a barrier until the day they will be resurrected” (23:100).

Literally speaking, “Barzakh” is a barrier that stands between two things; Quran, however, introduces it as an interval between the death of a man and the forthcoming hereafter (Ma’ad); a stage at which human leads either a blissful or miserable life, based on his deeds on earth.

The Day of Judgment

The second stage of eternal life starts on the Day of Judgment (Yawm Al-Hisab). Unlike “Barzakh”, at which humans enter individually after death, this occurs to all the beings and the whole universe at the same time; every being starts a new permanent stage of life.

“And you will see the angels surrounding the Throne, celebrating the praise of their Lord, and judgment will be made between them with justice, and it will be said," All praise belongs to Allah, the Lord of all the worlds” (39:68).

Near the time of resurrection, all beings will cease to exist after hearing the first blow of the Horn (Israfil’s Horn). Then there will be a second blowing, and all Creation from the beginning till the end of time will be resurrected. People will be coming out of their graves in their physical bodies, standing and waiting, severely worried, under the sun to be judged by their Lord and to see rewards and retributions for their benevolent and malevolent actions in the earthly life.

“And when the Trumpet is blown, behold, there they will be, scrambling from their graves towards their Lord” (36:51).

Paradise and Hell

That day humans will be either granted admission to enter Paradise, where they will enjoy spiritual and physical pleasure, or sentenced to suffer spiritual and physical torment in Hell forever.

“[To the righteous it will be said], O soul at peace! Return to your Lord, pleased, pleasing! Then enter among My servants! And enter My paradise” (89:27-30).

“... and whoever disobeys Allah and His apostle, indeed there will be for him the fire of hell, to remain in it forever” (72:23).

The nature of Heaven and Hell has been analogously described in the Quran many times. However, there are verses that say:

“No one knows what has been kept hidden for them of comfort as a reward for what they used to do” (32:17).

Accordingly, What Heaven and Hell are really like is far beyond our comprehension and so cannot be explained to us unless they are allegorical.

The Relation between Earthly Life and Afterlife

In fact, the earthly affairs of mankind here are not separable from those of hereafter; that is the otherworldly destiny of a man is determined by himself in this world.  Many verses of the Quran indicate that the same good or bad deeds man commits in this life, will return to him, as their own reward or punishment, on the day of requital. People will live with the embodiment of their good or evil deeds, which are going to be their eternal companions.

The Similarities and Differences of Earthly Life and Afterlife

One of the common features of this earthly life and the hereafter is that they are both real and actual; in other words, human beings are aware of themselves and what belongs to them in both worlds. There are joy and pleasure, suffering and pain, or happiness and misery in both lives. In both worlds, human possesses a physical body and particular instincts. Nevertheless, there are basic differences too.

The reproduction, childhood, youth, senescence, and death we experience here will not exist in the hereafter. Here is the place of action while the hereafter is where we should pay for what we have done and compensate for our deeds. Life in this world is followed by death whereas we will lead an eternal life in the other world. Quran says:

“The life of this world is nothing but a diversion and play, but the abode of the Hereafter is indeed Life, had they known” (29:64).

Man’s perception will be heightened in the afterlife, and he will realize the truth of everything -every action or every being- more vividly. “[It will be said], You were certainly oblivious of this. We have removed your veil from you, and so your sight is acute today” (50:22).

In this earthly life, the man easily gets bored and tired of everything; he is always seeking what he does not have, and once he finds it he soon feels jaded and starts looking for something else. It seems as though he has lost something he can hardly find. In the hereafter, however, he will find what he has always longed for and what he has been attached to deep in his nature; that is Allah, the Lord of the universe.

Now that we have gone through the axiom of monotheism and accepted it as a logical and rational principle, we should note that this belief is much more complicated than it seems. In order to reach a firm belief in the existence of God and His Oneness, one has to follow each of its stages.

These degrees include “unity of the essence of Allah”, “unity of the attributes of Allah”, “unity in what Allah does” and “unity in worship”. The first three of these belong to the realm of theoretical monotheism, while the last one is among practical monotheism. Here we will have a brief look at each of these steps.

1. Unity of the Essence of Allah

This stage of monotheism is defined as believing that God is One and Unique in His essence. The very first thing that one assumes regarding Allah is that of His Self-dependence; He is a being who is not dependent on any other beings in any way, while everything depends on Him and seeks His help.

Secondly, one has to believe in His Creatorship; that He is the creator and the ultimate source of all the existing things, all things are from Him, and He is not from anything. Accordingly, He is called the First Cause. The unity of essence, thus, means that this being is not multiplicable, and there is nothing like it. Since the self-existing truth is one, then this world has only one source and one end; it has neither originated from various sources nor will return to various ones, the whole universe has one center, one pole, and orbit.

2. Unity of the Essence and Attributes of Allah

It is defined as the recognition that the essence and the attributes of Allah are identical and that His various attributes are not separate from each other. While the Unity, in essence, refers to God’s Oneness, denying the existence of any peer or like for Him, the Unity in attributes means the negation of any kind of multiplicity or plurality within His essence.

All the attributes implying perfection and beauty belong to Him, and they are not at all separate from Him. The separation of the essence from the attributes and their separation from each other are the characteristics of a limited being, while God is infinite and such characteristics cannot be ascribed to Him. Accordingly, Allah has attributes which are unlimited – like His own self – and identical with His essence.

3. Unity in What Allah Does

The Unity of His work is to recognize that the world with all its systems is the work of Allah alone and has originated from His will only. Nothing in this world has occurred on its account and independent from God; every agent, cause or power owes its existence and effect to Him.

As He has no partner in His essence, He has no peer in what He does either. While human beings, as one of these agents and causes, have control over their own actions and can influence their destiny, they are not at all out of God’s will and supervision; otherwise, we should consider them as God’s partners, which will ultimately deny God’s unity in essence.   

4. Unity in Worship

Reaching this stage is when one only worships God and has prepared himself for praying Allah, the One. Based on Islamic doctrine, the act of worship has its own degrees, the clearest of which is the performance of the rites for Allah’s glorification and exaltation.

According to Holy Quran, worship is not limited to the actual performance of prayer but includes any form of spiritual orientation and idealization; the person whose purpose and motivation in life only satisfies his own whim has, in fact, led his spiritual direction toward it and thus worshiped it instead of God. So, the unity in worship is to see Allah as the only one who is fit to be worshiped and obeyed unconditionally and regard Him as the only purpose and direction of one’s conduct.

What Is the Difference between Theoretical and Practical Monotheism?

The first three degrees are all theoretical and a matter of creed - they should be recognized and acknowledged, and require rational thinking- while the fourth one is practical and a necessity for all of our actions.

Moreover, theoretical monotheism gives an insight to perfection while practical monotheism is the actual movement toward it; it is only seeing God’s Oneness and finding knowledge about it while practical monotheism is experiencing and feeling these beliefs tangibly in all walks of life.

In other words, theoretical monotheism provides the basis and foundation of practical monotheism; on the other hand, without bringing those beliefs into action, they would become deficient and imperfect.