44 Preface يُقَلِّبُ اللَّهُ اللَّيلَ وَالنَّهارَ ۚ إِنَّ في ذٰلِكَ لَعِبرَةً لِأُولِي الأَبصارِAli Quli QaraiAllah alternates the night and the day. There is indeed a moral in that for those who have insight.