If the heart becomes hardened, the eye becomes dry...
-Ibn Qayyim
"The slave is not afflicted with a punishment greater
than the hardening of the heart and being distant from Allah. For the
Fire was created to melt the hardened heart. The most distant heart from
Allah is the heart which is hardened. If the heart becomes hardened,
the eye becomes dry."
—Imam Qayyim al Jawziyyah