Among the signs of the completion of Allah’s blessings on His believing servants is that He afflicts them with difficulty and harm, then welcomes them as refugees in His Tawhid. They then sincerely invoke Him, devotionally worshiping Him alone, and place their hopes in Him alone and their hearts are attached to Him and no one else. This gives rise to complete trust in Allah, returning repentantly and obediently to Him, the sweetness of faith and its taste, as well as renouncing shirk. This is even more beneficial for them than being freed from affliction by illness, fear, hunger, drought, or even the arrival of ease and the disappearance of difficulty in this worldly life. For all of these things are worldly pleasures and benefits, which disbelievers can have much more than believers. But what happens to the people of Tawhid, those who exclusively worship Allah, is more grandiose than what words can express or the mind can detail. Each believer will have a share of this according to their faith.

Source: Majmou’ Al Fatawa (10/333), Ibn Taymiyya, may Allah have mercy on him.