Shaykh Dr. Yasir Qadhi gives the standard interpretation from mainstream orthodox Sunni Islam of Surat al-Nur verse 35 - The verse of Light.
"Allah is the Light of the heavens and the earth. The example of His light is like a niche within which is a lamp, the lamp is within glass, the glass as if it were a pearly [white] star lit from [the oil of] a blessed olive tree, neither of the east nor of the west, whose oil would almost glow even if untouched by fire. Light upon light. Allah guides to His light whom He wills. And Allah presents examples for the people, and Allah is Knowing of all things."
- [Surat An-Nur, verse 35]
No Ayah of the Qur'an has been the most oft-commented than Ayah al-Nur (the verse of light) with a plethora of Tafasir based on the exposition of Ayah al-Nur.