No man as long as he remains alive, will ever be wholly free of trial. This is simply the nature of things in this world. Suffering uncovers human frailties and literally pushes the reasonable person to his knees, so to speak, at Allah's door, in quest of relief and the mercy of his Lord. The true believer is expected to seek refuge in Allah in every trouble which befalls him, regardless of how insignificant it may seem. The Prophet of Allah, upon him be peace, said:
Let each of you turn unto Allah in every troublesome matter; even when you are pained by the thong of your sandal, for even that is a trial.
In other words, they Must rely, in all of his affairs, upon Allah's assistance, and not suppose that any of these affairs can be settled except by His leave. The greater the misfortune, the more ardent the Muslim's desire for refuge in Allah, and the more protracted his entreaty.
"Remembrance & Prayer" - Muhammad al-Ghazali, p. 91