Nedem is the lamentation of the qalb (the heart) at the moment it realizes the beloved has been lost. Its ishāra (sign) is prolonged yearning and sorrow, tears flowing from the eyes, weeping for a long time, and falling into deep contemplation. Whoever becomes aware of a calamity that befalls their child or a precious person dearer to them than their own nafs (the lower self), their affliction intensifies, and they weep for a long time, pondering deeply. Which of these is more precious to them than their own nafs? Which punishment is more severe than Hell? What thing causes one to be subjected to a punishment arising from sins? And which messenger could be more truthful than Allah and His Messenger (peace be upon him)? (Iḥyāʾ, IV, 42; Qudāma, 275)
If a physician were to inform them that the illness afflicting their child would not be cured, their sorrow would immediately increase. Yet, their child is not more precious than themselves, and the physician is not more knowledgeable than Allah and His Messenger (peace be upon him). Death is not more severe than the fire of Hell. Illness, just as it may lead to Hell by causing sins and incurring Allah's wrath, may not necessarily lead to death. (Qudāma, 275)
(See also tawba-ināba-awba)