أَو كَظُلُماتٍ في بَحرٍ لُجِّيٍّ يَغشاهُ مَوجٌ مِن فَوقِهِ مَوجٌ مِن فَوقِهِ سَحابٌ ۚ ظُلُماتٌ بَعضُها فَوقَ بَعضٍ إِذا أَخرَجَ يَدَهُ لَم يَكَد يَراها ۗ وَمَن لَم يَجعَلِ اللَّهُ لَهُ نورًا فَما لَهُ مِن نورٍ

Or [they are] like darknesses within an unfathomable sea which is covered by waves, upon which are waves, over which are clouds - darknesses, some of them upon others. When one puts out his hand [therein], he can hardly see it. And he to whom Allah has not granted light - for him there is no light.