From the greatest of causes for the uprightness of the heart and its protection [from harm] is the plentiful reading of the qur.aan.
So if you see a man whose taste and desire is for listening to verses [of poetry] rather than verses [of the Qur.aan], and for listening to music rather than the Qur.aan…
For every thing there is a sign, and the sign of failure is to abandon crying [out of the fear of Allaah].
I have not eaten my fill for 16 years, except on one occasion; and [on that occasion] I placed my hand in my mouth and induced myself to vomit.
Whenever I looked at al-Fudhayl [ibn ’Iyaadh], [the mere sight of him] would awaken sadness [in my heart], [causing me to] despise myself, and then weep.