It is a custom in some quarters to represent Mohammedan mysticism as merely a late importation into Islam, and an altogether alien element in it. But however much later Islamic mysticism may have derived from Christian, Neo-platonic, and Buddhist sources, there is little doubt that the root of mysticism are to be found m the Koran itself. The following verse is an instance: "God is the Light of the heavens and the earth. His light is like a niche in which is a lamp, the lamp encased in glass-the glass as it were a glistening star. From a blessed tree is it lighted, the olive neither of the East nor of the West, whose oil would well nigh shine out even though fire touched it not! It is light upon light!" (Koran Sura 24). Indeed it seems strange to accord the title of "a practical mystic" to Cromwell and to deny it to Mohammad, whose proclivity for religious meditation was so strong that the Arabs- used to say "Muhammad is in love with his Make".