By: Maged Taman.
For a lot of people they do not even care why they are created and what is the great purpose in their life. They live for utmost enjoyments. They are looking for this endorphins that is released in our brain and make us happy. They get it from sex, drugs, possession, inflated ego, enjoying the evil deeds and rarely the good ones. It is the life of materialism where oneself is the center of the universe. However, since our materialism clash with one another and as each of us run randomly for his own purpose we clash together we envoy, jealous and hate one another. For sake of western civilization we have to play it in a civilized way. As much we try to appear social but in reality every one is in his own island that called myself. Same happen in many Muslim countries.
In order for us to know the purpose of creation we have to listen to the creator thyself. You read these verses from the Quran:
Behold, thy Lord said to the angels: "I will create a vicegerent on earth." They said: "Wilt Thou place therein one who will make mischief therein and shed blood?- whilst we do celebrate Thy praises and glorify Thy holy (name)?" He said: "I know what ye know not." [2:30].
«"And I did not create the Jinn and mankind except to worship Me…"» [51:56-58]
«“O mankind, worship Allah, you have no deity other than Him."» [7:59].
«“[He] who created death and life to test you [as to] which of you is best in deed - and He is the Exalted in Might, the Forgiving."» [67:2]
The first and the most important command of God is the first command which is to worship him alone. He is one God with no partners and no one is equivalent to him.
«“Say : He is Allah [Who is] One, Allah, the Eternal Refuge. He neither begets nor is born, nor is there to Him any equivalent."» 
This is the first thing that unite us. Then comes his commandments the good deeds and avoiding sins. We unite again in morality and being civilized people both from the outside but more from inside. This is why Islam give you this inner peace you are one of God's people that has your trust in him and you feel that he watches over you and protects you. Humans can easily have feeling of that God who with them all the time and talk to him, it is part of us called in Arabic Fetra (inborn knowledge). You feel safe with him and he protects you so you feel serene and in peace and have a great purpose in life to worship him and enjoy a luxurious eternity. In the civilizations that minimize God role you are running with no fulfilling purpose and feeling anxiety and restless mind and spirit.
To sum it up the purpose of creation is self-realization. We are created. The creator had predetermined for us his guidance. It is up to him what, when and by whom he sends his message. No messenger had a free ride we find our ways to kill them, intimidate them or discount them. The message is simple when we submit to God we feel happiness in worshiping him and in following his commandments. Interestingly we find our love to each other and be able to get along and have a happy life.