يَوْمَ تَمُورُ السَّمَاءُ مَوْرًا (9)
(52:9) (It shall come to pass) on the Day when the heaven will convulse in a great convulsion, *7
*7) The word maut in the original is used for turning round, boiling, fluttering, rotating, swinging and moving forward and backward. The object of depicting the condition of the heavens on the Day of Resurrection in these words is to give the idea that the system of the heavens on that Day will be wholly upset, and when an observer will look up to the sky, he will feel that the constant pattern and order that it always used to present, has been broken and there is disorder, confusion and chaos on every side.