Ghazzali`s Religious Study in Ahya` ul-Olum

Although religion studying is a new subject in the field of religious studies, it can be seen from the traditional point of view. In this research, some problems on religion have been studied by Ghazali's approach of studying religion. Although Ghazzali being of some presuppositions had a religious approach to religious beliefs, he sought to rebuild and restore religion in his day. As viewed by him, religion focuses on human thought and action both. Religion is not only external and appear rituals, but it is an important agent for cultivating human beings. The essence of religion is in sciences lies in intuition, but its path passes from the science of transaction. Although final prosperity is the ultimate goal of religion, this prosperity is based on worldly prosperity. In this view, God is the ultimate source of religion, and religious leaders have authority