The Qur'an, the Book of God, enshrines the teachings which were basically the same as were to be found in previous revealed scriptures. But these ancient scriptures are no longer preserved in their original state. Later additions and deletions have rendered them unreliable, whereas the Qur'an, preserved in its original state, is totally reliable. The Qur'an has 114 chapters. Its contents in a nutshell are: belief in one God, and considering oneself answerable to Him; firm belief that the guidance sent by God through the Prophet Muhammad is the truth and that man's eternal salvation rests thereon. The position of the Qur'an is not just that it is one of the many revealed scriptures but that it is the only authentic heavenly book, as all other books, due to human additions and deletions, have been rendered historically unreliable. When a believer in the previous revealed scripture turns to the Qur'an, it does not mean that he is rejecting his own belief, but rather amounts to his having re-discovered his own faith in an authentic form. The Qur'an is a sacred book sent by the Lord of all creation. It is a book for all human beings, because it has been sent by that Divine Being who is the God of all of us. The Qur'an is no new heavenly scripture. It is only an authentic edition of the previous heavenly scriptures. In this respect, the Qur'an is a book for all human beings, of all nations. It is the expression of God's mercy for one and for all. It is a complete message sent by God for everyone of us. The Qur'an is a light of guidance for all the world just as the sun is the source of light and heat for all the world. Islam means submission. The religion of Islam is so named because it is based on obedience to God. A true believer in Islam is one who subordinates his thinking to God, who follows God's dictates in all aspects of his life. Islam is the religion of the entire universe. For the entire universe and all its parts are functioning in accordance with the law laid down by God. Such behaviour is also desired of man. Man should also lead his life as God's obedient servant just as the rest of the universe is fully subservient to God. The only difference is that the universe has submitted to God compulsorily while man is required to submit to the will of God by his own choice. When man adopts Islam, first of all it is his thinking, which comes under Islam, then his desires, his feelings, his interests, his relations, his loves and his hatred. All are coloured by his obedience to God's will. When man, in his daily life comes under God's command, his behaviour with people, his dealings, all are moulded by the demands of Islam. From inside to outside he becomes a person devoted to God. Man is God's servant, and indeed, the only proper way for man in this world is to live as the Servant of God. Islam, in fact, is another name for this life of servitude to God. Where the Islamic life is devoted to the service of God, the un-Islamic life unashamedly flouts the will of God. Islam teaches man to lead an obedient life and surrender himself completely to the will of God. It is people who do so who will share God's blessings in the next world.