Overall meaning : The Day of Decision, on which Allah will decide and judge people, is an appointed day which will take place at an appointed time to gather people together for judgement. On that day, the Angel will sound the Trumpet for people to be resurrected and you will all come forth from your graves in crowds to the Place of Gathering—the plains of Judgement Day. The sky will split open, becoming wide-flung gates, and the mountains will be removed from their places, turning into dust.