From that time on until the year of his death, Mohammed was fortunate in everything he undertook.
There are two reasons for the success of Islam. In the first place, the creed which Mohammed taught to his followers was very simple. The disciples were told that they must love Allah, the Ruler of the World, the Merciful and Compassionate. They must honour and obey their parents. They were warned against dishonesty in dealing with their neighbours and were admonished to be humble and charitable, to the poor and to the sick. Finally they were ordered to abstain from strong drink and to be very frugal in what they ate. That was all. There were no priests, who acted as shepherds of their flocks and asked that they be supported at the common expense. The Mohammedan churches or mosques were merely large stone halls without benches or pictures, where the faithful could gather (if they felt so inclined) to read and discuss chapters from the Koran, the Holy Book. But the average Mohammedan carried his religion with him and never felt himself hemmed in by the restrictions and regulations of an established church. Five times a day he turned his face towards Mecca, the Holy City, and said a simple prayer. For the rest of the time he let Allah rule the world as he saw fit and accepted whatever fate brought him with patient resignation.