It teaches that there is only One God who is the origin and creator of the universe. This is the foundation stone of Islam, and is reflected in the famous creed which a Muslim child learns at a very early age. Since the Qur' n is in Arabic, Muslims like to use the Arabic name for God. By teaching that there is only One God for all humans, Islam promotes the sense of brotherhood and equality in human society-all are equally related to God in the same way. The Qur' n has very beautifully presented the concept of monotheism in a short chapter.
All h is Eternal.
He neither begets nor is He begotten. And there is no one equal to Him. However, in order to attain the bliss and grace in the eternal life, we have to go through test and trial in this world. The test is to see how much do we willingly submit ourselves to the commands of God. Everything that we do is a test and trial for us.