This treatise gives an intimate glimpse of the inner life and esoteric thought of Imam al-Ghazali. It begins where his autobiographical Deliverance From Error (Al-Munqidh min al-Dalal) leaves off. It basically expounds the celebrated Light verse (24:35) from the Qur’an and the subject of Veils from the hadith. These are further elaborated in three sections; one studying the various meanings of “Light”, the other on symbolic language in the Qur’an and Hadith and the final section concludes by applying the results of this symbology to the verse and hadith in question.