The Quran

يَومَ تَرَى المُؤمِنينَ وَالمُؤمِناتِ يَسعىٰ نورُهُم بَينَ أَيديهِم وَبِأَيمانِهِم بُشراكُمُ اليَومَ جَنّاتٌ تَجري مِن تَحتِهَا الأَنهارُ خالِدينَ فيها ۚ ذٰلِكَ هُوَ الفَوزُ العَظيمُ

Ali Unal

On that Day, you will see the believing men and the believing women (led swiftly toward Paradise), with their light shining forth before them and on their right hands.¹ “Glad tidings for you today: Gardens through which rivers flow, (into which you will enter) to abide therein! This is indeed the supreme triumph.”

This is the light that the believers send forth from the world through their good deeds. The more deeds there are, and the more sincerely they are done, the greater and brighter is the light that they will produce. As understood from the verse, the believers will advance toward Paradise on the right side, while, as will be understood from the following verse, the hypocrites (and the unbelievers), who will receive their records of deeds in their left hands, will advance toward Hell on the left side, and be left behind because of being enveloped by the darkness produced by their unbelief, hypocrisy, and evil deeds.