Just as the heart may be described in terms of being alive or dead, it may also be regarded as belonging to one of three types. These are the healthy heart the dead heart, and the sick heart.
The Healthy Heart;
Those who come to Allah with a healthy heart on the day of resurrection will be saved. It says in the holy Quran;
“The day on which neither wealth nor sons will be of any use, except for whoever brings to Allah a sound heart.” (26; 88-89)
“It is a heart cleansed from any passion that challenges what Allah commands, or disputes what He forbids; it is free from any impulses which contradict His good. As a result, it is safeguarded against the worship of anything other than Him, and seeks the judgment of no other except that of His Messenger (pbuh). When it loves it loves in the way of Allah. If it detests, it detests in the light of what He detests. When it gives it gives for Allah. If it withholds, it withholds for Allah. Nevertheless, all this will not suffice for its salvation until it is free from following, or taking as its guide, anyone other than His Messenger (pbuh). “That is the definition of a healthy heart.
A servant with a healthy heart must dedicate it to its journeys end and not base his actions and speech on those of any other person except Allah’s Messenger (pbuh)
“Oh you, who believe, do not put yourselves above Allah and His Messenger, but fear Allah, for Allah is Hearing Knowing.” (49; 1)
Now describing The Dead heart;
This is the opposite of the healthy heart as we all are aware of. The dead heart does not know its Lord and does not worship Hum as He commands, in the way which He likes, and with which He is pleased. It clings instead to its lusts and desires, even if these are likely to incur Allah’s displeasure and wrath.
The diseased heart worships other things than Allah, and its loves and its hatreds, and its giving and its withholding, arise from its whims, which are of paramount importance to it and preferred above the pleasure of Allah.
Written by Ibn Qayyim al-Jawziyyah,