“It is He Who has endowed with the faculties of hearing and sight and Who has given you hearts (to think). Scarcely do you give thanks. It is He Who has dispersed you all around the earth, and it is unto Him that you shall all be mustered. It is He Who gives life and causes death, and He holds mastery over the alternation of night and day. Do you not understand this?”
(Al-Qur’ān – 23:78-80)
The unbelievers are being asked: did God not endow human beings with eyes, ears, and the faculties of head and heart so that they might use them in the manner of animals? Do these faculties have no other purpose that human beings become engrossed in scheming as to how they can best employ them in the fulfilment of their biological needs? Can there be any greater ingratitude on man’s part than that he makes himself indistinct from animals, and this despite the fact he was created as a species distinct from animals? They employ their heads and hearts to reflect on literally everything except the fundamental question of how did they come into being and for what purpose.
There are a myriad of signs. If man could only observe them properly or derive from them proper inferences, he would be able to reach the truth. Thanks to those signs, it is quite possible for man to realise that this well-regulated universe could neither have come into existence without God Who created it, nor could it have been created by a plethora of gods.