God's Prophet (a.s) said: “Who does not like to sleep through the night without getting sick?” Everybody said hurriedly: “O' Prophet of God! Teach us how to do that. He said: “Do you want to be like a lost donkey?” They said: “O' Prophet of God! No we do not want that.” The Prophet (a.s) said: “Do you not like to be continually suffering from calamities as penalty for your sins? I swear by the One who controls my life that God will send a calamity to a believer only if He wants to honor him, but he cannot attain the rank that God wants to give him through his own good deeds alone, and can attain it only if he suffers from a calamity.”