Whatever we may presume to be another world...
Whatever we may presume to be another world, it will either be identical with this world or a part of it. This example applies to the material world as well as the material beings which are limited, conditional and created. The reality of none of them is absolute, independent and self-existing. The material world, though limitless from the viewpoint of its dimensions, is limited from the viewpoint of its reality.
But as its dimensions are limitless, we cannot presume the existence of another world. Almighty Allah has an infinite existence. He is an absolute reality, and He pervades everything. No space or time is devoid of Him. He is closer to us than our jugular vein. Hence it is impossible that He should have a like of Him. We cannot even suppose the existence of another being like Him. Furthermore, we see the signs of His wisdom and attention prevailing everywhere and pervading everything.
We observe that one single will and one single system govern the entire world. That shows that our world is unicentred, not multicentred. Furthermore, had there been two or more Gods, evidently two or more wills would have applied to everything and two or more realities having a different centre would have existed in every existing thing. As a result everything would have become two or more things. This being an absurd proposition, in fact nothing would have existed at all.
This is what the Holy Qur'an means when it says: "If there were therein (in the Universe) Gods besides Allah, then surely both the heavens and the earth had been discorded." (Surah al-Ambiya, 21:22) Worship and Adoration The acknowledgement of One Allah as the most perfect being, having the most sublime attributes and free from every defect and deficiency, and the recognition of His relation to the world consisting in His creatorship, guardianship, munificence, compassion and mercy, create a reaction in us which is called adoration and worship.
Worship is a kind of relationship which man establishes with his Creator. It consists of man's submission to Allah and extolling and thanking Him. It is a relationship which man can establish with his Creator only. The establishment of such a relationship with anyone else is neither conceivable nor permissible. The acknowledgement of Allah as the only source of existence and the only Master and Lord of everything makes it incumbent on us not to associate any creature with Him in adoration.
The Holy Qur'an insists that Allah alone should be worshipped.