24.35 . Allah is the Light of the heavens and the earth . The similitude of His light is as a niche wherein is a lamp . The lamp is in a glass . The glass is as it were a shining star . ( This lamp is ) kindled from a blessed tree , an olive neither of the East nor of the West , whose oil would almost glow forth ( of itself ) though no fire touched it . Light upon light , Allah guideth unto His light whom He will . And Allah speaketh to mankind in allegories , for Allah is knower of all things .