Beware, the world is wrapping itself up and has announced its departure. Its known things have become strangers and it is speedily moving backward. It is advancing its inhabitants towards destruction and driving its neighbours towards death. Its sweet things (enjoyments) have become sour, and its clear things have become polluted. Consequently, what has remained of it is just like the remaining water in a vessel or a mouthful of water in the measure. If a thirsty person drinks it his thirst is not quenched.
By Allah, if your hearts melt down thoroughly and your eyes shed tears of blood either in hope for Him or for fear from Him and you are also allowed to live in this world all the time that it lasts even then your actions cannot pay for His great bounties over you and His having guided you towards faith.
(1) al-Saduq, Man la yahduruh, I, 329;
(2) al-Tusi, al-Misbah, 461;
(4) al-Mufid, al-'Amali, 87.