Overall meaning : We have prepared for the unbelievers chains by which they will be dragged into Hell, shackles of iron with which their hands will be bound to their necks and a blazing fire. The obedient and righteous believers will have a drink of pure wine flavoured with camphor—a flowing spring from which Allah’s servants will drink, directing it to flow in abundance wherever they please!
These righteous and obedient believers fulfilled their vows in the life of the world, feared the Day of Resurrection whose evil will spread far and wide and gave food—despite their love for it—to the poor, the orphans and the captives, saying within themselves, ‘We only feed you to attain Allah’s good pleasure and receive reward from Him. We desire neither reward from you, nor any thanks. We fear from our Lord the Day of Resurrection and its awful horrors and immense distress.’
So Allah will save them from the evil of that day and will grant them light and beauty on their faces and put joy into their hearts; and He will reward them for their patience with a great Garden and garments of silk to wear.