The reality of death and the afterlife

فَكَيْفَ إِذَا تَوَفَّتْهُمُ ٱلْمَلَـٰٓئِكَةُ يَضْرِبُونَ وُجُوهَهُمْ وَأَدْبَـٰرَهُمْ

Then how [will it be] when the angels take them in death, striking their faces and their backs?