Overall meaning : The idolaters do not truly show due reverence to Allah by worshipping others besides Him. The whole earth will be a mere handful for Him on the Day of Resurrection, and the seven heavens will all be rolled up in His Right Hand! Glory be to Him! Far exalted is He above what they attribute to Him!
The Trumpet will be blown on the Day of Resurrection, and all those who are in the heavens and the earth will fall dead, except those whom Allah wills to spare. Then it will be blown again, and all those who have died will rise from their graves, looking on.
The Place of Gathering (the plains of Judgement Day) will shine bright with the light of its Lord when He reveals Himself in a manner befitting His majesty to judge people, and the records of people’s deeds will be laid open. The prophets and the witnesses will be brought in to bear witness to people’s actions. Allah will judge all of them with absolute fairness, and none will be wronged in the least. Every person will be repaid in full for whatever good or bad deeds he has done. Allah is fully aware of all they do in this life.