Overall meaning : Allah Almighty says, explaining the condition of the mountains and that of people on the Day of Resurrection: Your people ask you, Muhammad, about what will become of the mountains on the Day of Resurrection. Say to them, ‘My Lord will uproot them and blast them into scattered dust, leaving the place where they once stood as a smooth plain, level and bare, with no constructions or vegetation whatsoever. The earth then will be flat with neither depressions nor elevations at all to be seen.’
On that day, people will, upon leaving their graves, strictly follow the caller’s voice to the Place of Gathering—the plains of Judgement Day—without the slightest deviation from him. All sounds will be hushed in total submission to the All-Merciful God and out of fear of Him, so that you will hear nothing but a faint murmur.
On that day, no intercession will be of any benefit to anyone, except that of whom the All-Compassionate God will grant permission to intercede for someone or that for whom intercession will be sought, and with whose words (that is, those of both the intercessor and the one for whom intercession will be sought) He is well-pleased. He knows full well what lies ahead of people on Judgement Day and everything they leave behind in the worldly life and whatever deeds they have done in it, but of which they have no knowledge.