How do non-Muslims see light and happiness when approaching death, even though an unbeliever is promised the Fire?

The measure of good and evil is action. Whoever does good deeds will have a good life in this world and the hereafter. And whoever does evil deeds will have a life of misery. Satan is keen to tempt the children of Adam, especially at the time of death, to mislead the believer or to affirm the misguided in their error. He may appear in various forms to mislead people, as he does with the people of misguidance among Christians and others. These visions and extraordinary occurrences seen by the people of misguidance are from the delusions of Satan to tempt them and affirm them in their falsehood. As for the disbeliever at the time of death, he is given tidings of the Fire and tastes the torment of burning, which is the beginning of eternal torment.