What were two reasons people were ready to convert to Islam?

Two reasons people were ready to convert to Islam:

Islam is one of the most followed religion of the world and is spreading at a very fast rate in different countries of the world. Earlier this religion was not spreading so fast as compared to the rate at which it is spreading now. The two main reasons why this religion is spreading and why people are ready to convert in this religion is;

1) Teachings of the Muslims

2) Reading of the religious texts like reading the holy Quran. People were fascinated towards these two reasons and wanted to make these teaching and these texts a way to lead their lives and to become a good an noble human being.