We should know that Allah has created us to live an eternal life with no death, a life of pride and ease with no humiliation, a life of security with no fear, a life of richness with no poverty, a life of joy with no pain, a life of perfection with no flaws. Allah is testing us in this world with a life that will end in death, a life of pride that is accompanied by humiliation and degradation, a life that is tainted by fear, where joy and ease are mixed with sorrow and pain.
Ibn Qayyim Al-JawziyyaWhoever desires to purify his heart, then let him prefer Allah to his desires
Ibn Qayyim Al-JawziyyaFrom the perfection of Allah's ihsan is that He allows His slave to taste the bitterness of the break before the sweetness of the mend. So He does not break his believing slave, except to mend him. And He does not withhold from him, except to give him. And He does not test him (with hardship), except to cure him.
Ibn Qayyim Al-JawziyyaThe perfection of Tawheed is found when there remains nothing in the heart except Allaah
Ibn Qayyim Al-JawziyyaLove of Allah is the power of the heart, the sustenance of the heart, the light of the heart.
Ibn Qayyim Al-JawziyyaThe ibtilaa' (testing) of the believer is like medicine for him. It cures him from illness. Had the illness remained it would destroy him or diminish his reward and level (in the hereafter). The tests and the trials extract these illnesses from him and prepare him for the perfect reward and the highest of degrees (in the life to come).
Ibn Qayyim Al-Jawziyya