Concept of God If one should judge from the relics of the past already brought to light of the homo sapiens, one finds that man has always been conscious of the existence of a Supreme Being, the Master and Creator of all. Methods and approaches may have differed, but the people of every epoch have left proofs of their attempts to obey God. Communication with the Omnipresent yet invisible God has also been recognized as possible in connection with a small fraction of men with noble and exalted spirits. Whether this communication assumed the nature of an incarnation of the Divinity or simply resolved itself into a medium of reception of Divine messages (through inspiration or revelation), the purpose in each case was the guidance of the people. It was but natural that the interpretations and explanations of certain systems should have proved more vital and convincing than others. Every system of metaphysical thought develops its own terminology. In the course of time terms acquire a significance hardly contained in the word and translations fall short of their purpose. Yet there is no other method to make people of one group understand the thoughts of another. Non-Muslim readers in particular are requested to bear in mind this aspect which is a real yet unavoidable handicap. By the end of the 6th century, after the birth of Jesus Christ, men had already made great progress in diverse walks of life. At that time there were some religions which openly proclaimed that they were reserved for definite races and groups of men only, of course they bore no remedy for the ills of humanity at large. There were also a few which claimed universality, but declared that the salvation of man lay in the renunciation of the world. These were the religions for the elite, and catered for an extremely limited number of men. We need not speak of regions where there existed no religion at all, where atheism and materialism reigned supreme, where the thought was solely of occupying one self with one's own pleasures, without any regard or consideration for the rights of others. Arabia A perusal of the map of the major hemisphere (from the point of view of the proportion of land to sea), shows the Arabian Peninsula lying at the confluence of the three great continents of Asia, Africa and Europe. At the time in question. This extensive Arabian subcontinent composed mostly of desert areas was inhabited by people of settled habitations as well as nomads. Often it was found that members of the same tribe were divided into these two groups, and that they preserved a relationship although following different modes of life. The means of subsistence in Arabia were meagre. The desert had its handicaps, and trade caravans were features of greater importance than either agriculture or industry. This entailed much travel, and men had to proceed beyond the peninsula to Syria, Egypt, Abyssinia, Iraq, Sind, India and other lands. We do not know much about the Libyanites of Central Arabia, but Yemen was rightly called Arabia Felix. Having once been the seat of the flourishing civilizations of Sheba and Ma'in even before the foundation of the city of Rome had been laid, and having later snatched from the Byzantians and Persians several provinces, greater Yemen which had passed through the hey-day of its existence, was however at this time broken up into innumerable principalities, and even occupied in part by foreign invaders. The Sassanians of Iran, who had penetrated into Yemen had already obtained possession of Eastern Arabia. There was politico-social chaos at the capital (Mada'in = Ctesiphon), and this found reflection in all her territories. Northern Arabia had succumbed to Byzantine influences, and was faced with its own particular problems. Only Central Arabia remained immune from the demoralising effects of foreign occupation. In this limited area of Central Arabia, the existence of the triangle of Mecca-Ta'if-Madinah seemed something providenti