Understanding Islam. Islam has spread throughout the Western world in ways unimagined 40 years ago. So Chafer Seminary has invited Shahram Hadian, a former Muslim who converted to Christianity as a young adult to help us understand the truth about Islam and the direction of modern Islamic movements. It is vital for Bible-believing Christians to be informed for the dual purpose of evangelism, as well as the political and civil decisions that must be made in relation to Islamic immigration.