Overall meaning : Allah Almighty says: True believers in Our revelations are those who, when reminded of them, fall down prostrating and putting their foreheads on the ground in full submission to their Lord, and, while prostrating, declare Him free from all defects and imperfections and extol His limitless glory and praise; and they are never too arrogant to do so.
They leave their beds at night to pray to their Lord in fear of His punishment and in hope of His reward and mercy, and spend in Our way out of what We have provided for them. No one knows or can even imagine the blissful delights Allah has kept in store for them in the life to come as a reward for the righteous deeds they used to do in the worldly life.