The heart becomes sick, as the body becomes sick, and its remedy is al-Tawbah (repentance) and protection [from transgression]. It becomes rusty as a mirror becomes rusty, and its clarity is obtained by remembrance. It becomes naked as the body becomes naked, and its beautification is al-Taqwa. It becomes hungry and thirsty as the body becomes hungry, and its food and drink are knowledge, love, dependence, repentance and servitude.

The 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).

And if a person were given all of the world and what is in it, it would not fill his emptiness.

O you who sold yourself for the sake of something that will cause you suffering and pain, and which will also lose its beauty, you sold the most precious item for the cheapest price, as if you neither knew the value of the goods nor the meanness of the prize. Wait until you come on the Day of Mutual Loss and Gain and you will discover the injustice of this contract.

A tear that runs down a believer's cheek is more beneficial than a thousand raindrops on the earth

A true believer does not fear physical death, rather he fears the death of his heart

How strange! You lose a little from you and you cry. And your whole life is wasting and you're laughing