The Light Verse in Surah An-Nur (24:36) has attracted much spiritual attention and commentary by eminent scholars and savants of Islam through the centuries, including a famous treatise by Imam Ghazzali (ra). The verse is widely seen as a beautiful metaphor of the profound, transformational impact the Faith in God brings about in the heart of a true believer. The illumination of the pious heart, brought through its God-gifted encounter with the Light of revelatory guidance, is a perfect spiritual promise Allah (swt) vouchsafes to His special servants and Friends in every era (Auliah of Allah). According to some commentators, the Verse alludes to the Divine Light vouchsafed to the Holy Prophet (sa) and his spiritual Khulafa, the Mujaddidin who come in every era of Islam to renew and reform the Muslim Ummah and to guide them on the pristine path of Faith. Indeed, based on the Qur'anic promise of perpetual spiritual guidance and Muhammadan blessings, the advent of a Khalifatullah as an Elect and High Representative of Allah is an occasion when the full brightness and splendour of the Faith becomes visible to the discerning minds- like we witness today in the person of Hazrat Imam Muhyi-ud-Din Al Khalifatullah Munir Ahmad Azim (aba) of Mauritius, Alhamdulillah, Summa Alhamdulillah.
Reproduced Below is a commentary on the Light Verse made by Promised Messiah Hazrat Mirza Ghulam Ahmad (as) of Qadian, in the Barahin-e-Ahmadiyya, Part III:
The Light of Faith in the Heart of a Servant
God is the Light of the heavens and earth. His Light is like this: there is a niche, and in it a lamp, the lamp inside a glass, a glass like a glittering star, fuelled from a blessed olive tree from neither east nor west, whose oil almost gives light even when no fire touches it–light upon light– God guides whoever He will to his Light; God draws such comparisons for people; God has full knowledge of everything– shining out in houses of worship. God has ordained that they be raised high and that His name be remembered in them, with men in them celebrating His glory morning and evening: men who are not distracted, a either by commerce or profit, from remembering God, keeping up the prayer, and paying the prescribed alms, fearing a day when hearts and eyes will turn over. God will reward such people according to the best of their actions, and He will give them more of His bounty: God provides limitlessly for anyone He will. (Surah An Nur, 24:36-39)