If by chance...
If by chance, any one of them finds anything in its place to supply a need, and not knowing the purpose for which it is set there and unaware of the underlying ingenuity, he might begin to reprimand the architect of the building in his offensive rage, whereas, as a matter of fact, the fault lies with his own inability to see. This analogy holds good in the case of the sect who deny the creative factor and the argument in favour of Divine Design.
Failing to appreciate the merit of their provision, the perfection of creation and the beauty of design, they start wandering in the wide world, bewildered by their inability to grasp with their brains the underlying causes and principles.
It so happens sometimes that someone among them is aware of a thing but in his ignorance of its reality, purpose and need, begins at once to find fault with it saying, "it is untenably wrong." The followers of Mani (the man who founded the Zoroastrianism sect in the time of King Shapur son of Urdsher, who believed in the prophethood of Isa (a.s.), but denied that of Musa (a.s.), and who believed in the duality of divinity as the creators of all good and evil in the universe - one light as the creator of all good things, the other darkness, as that of beasts and harmful creatures) who, as the heretical bigots of devilry, have begun openly to propound their heresies.
Besides these, some other misguided persons have also gone astray from the Divine favours, by merely declaring as untenable or impossible, certain facts. It behoves the person, whom Allah (swt) has endowed with the gnosis of reality and whom He has guided to His faith, and who has been granted insight to ponder over the beauty of design underlying creation, and who is gifted with the expression of the merits of such things, on the basis of cogent reasoning and fine distinction.
It behoves such a person to glorify the Almighty Allah consummately as his Lord for such celestial favours, and to pray to Him for an increase in gnosis and a steadfastedness therein, with lofty powers of expression thereof.
He (swt) says, "I shall increase My favours, if you are grateful and My chastisement is severe if you are ungrateful." The structure of the universe is the foremost directive and argument for the existence of Almighty Allah - how the parts thereof have been set together and been possessed of elegant workmanship and design.