Imam Abu Hamid al-Ghazali passed through many different stages of thought in his life, and ended up with Sufism, where he discussed Sufism and found that it is a group based on the truth in terms of beliefs and goals, and in terms of curriculum and conduct. He adopted sufism approach and invited people to it and support them with instructions and guidance so that he became one of the pioneers of Sufism and its defenders. Imam Ghazali did not stand at this point, he renewals the Sufism, reforms many mistakes and the deviant ideas associated with Sufism through many of his books. He makes the Sufi approach more tolerant and moderate, based on moderation in line with the fundamentals of the Quran and Sunnah away from extremism.