In this verse, the Quran tells us about what the believer experiences at the moment of death. It also shows the relationship of ones beliefs to what one experiences at the moment of death.
30.Verily, those who say: “Our Lord is Allah (Alone),” and then they stand firm, on them the angels will descend (at the time of their death) (saying): “Fear not, nor grieve! But receive the glad tidings of Paradise which you have been promised!
Quran (Surah Al-Fusillat, Verse 30)