The first of the six essentials of îmân is to believe that Allâhu ta’âlâ is the Wâjib al-wujûd and the Real Ma’bûd (the One Worshipped) and the Creator of all creatures. It should be believed for certain that He alone creates everything [every substance, atoms, elements, molecules, compounds, organic substances, cells, life, death, every event, every reaction, all kinds of power and sorts of energy, movements, laws, spirits, angels and every being living or lifeless out of nothing, and He makes them all survive] in both this world and the next without material, time or similarity, out of nonexistence. As He created all creatures in the universe [in one moment while they had been nonexistent], so He [creates some of them from one another, and, when the time for Doomsday comes, in one moment He] will annihilate everything. He is the Creator, Owner, Absolute Ruler of all creatures. It has to be believed and acknowledged that there is nobody to dominate Him, to command Him or to be superior to Him. Every type of Superiority, every Attribute of Perfection, belongs to Him only. No defect, no deficient attribute exists in Him. He is able to do what He wills. What he does is not intended to be useful to Him or to others. He does not do something for a reward. In everything He does, however, there are hidden causes (hikma), uses, blessings and favours.
A person with reason and scientific knowledge can understand this easily by thinking. Allâhu ta’âlâ in many places of Qur’ân al-kerîm, scolds and disgraces disbelievers because they didn’t use their minds; they didn’t think by observing the earth, the skies and themselves, and thus attain îmân. The book Ma’rifatnâme writes, “Sayyed Sharîf Jurjânî, a great Islamic scholar, says that the knowledge of astronomy helps a wise and reasonable person to realize the existence of Allâhu ta’âlâ. Imâm-i Ghazâlî says that he who does not know astronomy and anatomy cannot realize Allâh’s existence.