How do we realize the existence of Allah? How do we know Allah? What is the purpose our creation? Why are human beings subjected to test? How is it that Allah encompasses everything and He is closer to us than our jugular vein? How do we know the existence of the hereafter? What is true virtue? These are some of the many questions that a mind tries to find answer while we see the plants, animals, seas, mountains, and people we see when we look around, and everything else in the micro universe - living or non-living - which we cannot see, are all obvious evidence of a superior wisdom which has brought them into being. Similarly, the equilibrium, order, and perfect creation present in the entire universe also prove the existence of a supreme possessor of knowledge who has designed them perfectly. The possessor of this wisdom and knowledge is Allah. The Quran, the Divine words of Allah, explicitly answers these questions. In this book the author tries to explain to us in the very light to the Quran the answers to these and many other questions. It is very important for us to know the answer in order to understand the religion of Allah. We realize the existence of Allah from the perfect systems He created and the awesome qualities of living or non-living entities. This perfection is highlighted in the Qur\'an: He created the seven heavens one above the other. You will not find any flaw in the creation of the All-Merciful. Look again-do you see any gaps? Then look again and again. Your eyes will become dazzled and exhausted! (Surah al-Mulk: 3-4)