Peace be upon you all and the continued blessings of Ramadan!
The du’a noora (supplication of light) is one of my favourite du’a. Our beloved messenger peace and blessing of Allah be upon him, used to make this du’a while walking to the mosque (and maybe at other times). While reflecting on this du’a it occurred to me that what we are asking is that we be cloaked by the presence of God.
As Noor (light) is one of the ‘names’ of Allah, and indeed we are taught in the Quran that God is light upon light, in the profound ‘ayaa-un-noor’ (verse of light) *given below. What a beautiful and profound supplication. When Allah cloaks us and the presence of God is all around and in us, then we are truly in unity with the One, the Only God.
God’s blessings be upon you all. Make this du’a often, it will wash away from you all pain – sincere advice from your sister 🙂
Here is the du’a, taken from this site
Allaahummaj’al fee qalbee nooran, wa fee lisaanee nooran, wa fee sam’ee nooran, wa fee basaree nooran, wa min fawqee nooran, wa min tahtee nooran, wa ‘an yameenee nooran, wa ‘an shimaalee nooran, wa min ‘amaamee nooran, wa min khalfee nooran, waj’al fee nafsee nooran, wa ‘a’dhim lee nooran, wa ‘adhdhim lee nooran. Waj’al lee nooran, waj’alnee nooran. Allaahumma ‘a’tinee nooran, waj’al fee ‘asabee nooran, wa fee lahmee nooran, wa fee damee nooran, wa fee sha’ree nooran, wa fee basharee nooran.[Allaahummaj’al lee nooran fee qabree, wa nooran fee ‘idhaamee.][Wa zidnee nooran, wa zidnee nooran, wa zidnee nooran.]
[Wa hab lee nooran ‘alaa noor.] 
O Allah, place light in my heart, and on my tongue light, and in my ears light and in my sight light, and above me light, and below me light, and to my right light, and to my left light, and before me light and behind me light. Place in my soul light. Magnify for me light, and amplify for me light. Make for me light, and make me light. O Allaah, grant me light, and place light in my nerves, and in my body light and in my blood light and in my hair light and in my skin light.[O Allaah, make for me a light in my grave… and a light in my bones.]  [Increase me in light, increase me in light, increase me in light.]  [Grant me light upon light] 
 Up to this point was reported by Al-Bukhaari 11/116 (Hadith no. 6316) and by Muslim 1/526, 529-530 (Hadith no. 763)
 At-Tirmidhi 5/483 (Hadith no. 3419)
 Al-Bukhaari in Al-’Adaab Al-Mufrad (Hadith no. 695), p. 258. See also Al-Albaani, Sahih Al-’Adab Al-Mufrad (no. 536)
 Al-Bukhaari, cf. Al-Asqalaani, Fathul-Baari 11/118
*Here is the verse of light, it is aya number 35 of Surah number 24, Surah-an-Nur (the chapter called 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.