Imam al-Ghazali’s most prestigious work is Ihya’ Ulum al-Din or The Revival of Religious Sciences. The work covers all fields of Islamic science. This incorporates Islamic statute, philosophy, and Sufism. The book has gotten numerous positive reactions. Al-Ghazali at that point composed a condensed form of The Revivial of Religious Sciences in Persian under the title Kimiya-yi sa’adat otherwise called The Alchemy of Happiness.