As long as the servant loves anything other than Allah, his Messenger and his teacher, there is sickness in the heart, and the sick person relishes what is not delicious, just as the mouth rejects the taste of the delightful.
It is said, “And the mouth rejects the taste of sweet water from sickness.” (Couplet from qasidah burdah).
Some sick individuals find pleasure in dirt and eat it, while they deny the taste of the finest food. The heart, like the body, does not relish what is delicious unless it finds complete health; and when it is healthy, it knows that there is no delight except in the knowledge of Allah and His remembrance in all states.
May Allah grant us complete health of the heart. Amen.