66 Preface بَلِ ادّارَكَ عِلمُهُم فِي الآخِرَةِ ۚ بَل هُم في شَكٍّ مِنها ۖ بَل هُم مِنها عَمونَYusuf AliStill less can their knowledge comprehend the Hereafter: Nay, they are in doubt and uncertainty thereanent; nay, they are blind thereunto!1The Unbelievers are generally materialists, who cannot go beyond the evidence of their physical senses. As to a spiritual vision of the future, their physical senses would only leave them in doubt and uncertainty, while their rejection of the spiritual Light makes them blind altogether to the spiritual world.