God, you are Light.
Let your Light be in the feelings in my heart, in the vision in my eyes, in the hearing in my ears, and in the speech from my tongue.
God, surround me with your Light from the left and from the right, from front and back, from above me and below me.
God, let your Light be in all the particles in my body, in my bones, and in my muscles, let it flow in my blood and penetrate my hair.
God, enlighten my soul with your Light, and increase your Light in me evermore.
Ibn Abbas is quoted in the Book of Bukhari that Bilal told him that once Prophet Muhammad (pbuh) having prayed during the night fell asleep. When morning came, Bilal woke him for prayer and in his supplication the Prophet spoke thus.