A third interpretation is that "light" is the first light (al-nūr al-awwal) and the real light (al-nūr al-ḥaqq) since it is the only light that does not take its luminosity from some other source. God is light, the only light, the universal light, and he is hidden from mortals because he is pure light, although he is omnipresent. Using the term "light" for any other purpose is metaphor.[7]