He is Allah—the Creator, the Maker , the Giver of Form. To Him belong the Most Beautiful Names. Everything in the heavens and Earth glorifies Him. He is the Almighty, the All-Wise. ( Surat al-Hashr, 59:24)
The universe is based upon equilibrium and harmony. As scientific developments reveal more of its mysteries, we learn more about this equilibrium and harmony. It is apparent that each system in the universe has been designed by a superior intelligence that created everything in an amazing way. For billions of years, this great harmony and order has existed among an infinite number of living and non-living beings.
When we examine life on Earth, we come across amazing details. Whether we recognize it or not, we are surrounded with countless signs of creation. For instance, the ratio of different gases in the atmosphere are ideal for the survival of all living beings. Human beings and animals inhale oxygen and exhale carbon dioxide. Although this process continues without interruption, the amount of oxygen never decreases and the amount of carbon dioxide never increases. Moreover, this amazing equilibrium is never disturbed, because contrary to human beings and animals, plants inhale carbon dioxide and exhale oxygen. Thus, the oxygen consumed by people and animals is replaced by plants, a process that preserves this equilibrium.
This example is only one of the countless signs of creation on Earth. Both the micro- and macro-universes abound with similar examples. The universe, and thus life on Earth, exists only because our Lord creates things in conformity with one another. One verse reads:
And when Musa said to his people: “My people, You wronged yourselves by adopting the [golden] calf, so turn toward your Maker and kill yourselves. That is the best thing for you in your Maker's sight.” And He turned toward you. He is the Ever-Returning, the Most Merciful. ( Surat al-Baqara, 2:54)