Signs of an impure, diseased, and a dead heart:

Signs of an impure, diseased, and a dead heart:

* The person does not feel any hurt or pain when he commits evildeeds and sins.
* The person finds both pleasure in committing acts of disobedienceto Allah and a take it easy attitude after performing them.
* The person looks after the less important matters and does not careabout the more important ones.
* The person dislikes the Truth and has difficulty accepting orsubmitting to it.
* The person does not find comfort in being among the righteouspeople but finds a great deal of peace while among the evil and sinful.
* The person is susceptible to be affected by misconceptions anddoubts. He is attracted to discussions, debates and arguments that surroundsuch misconceptions rather than trying to understand the Qur'an, follow theSunnah and other such beneficial acts.This aspect can truly be seen nowadays among Muslims, especially over theInternet. Today, a Muslim may spend hours discussing, for example whether ornot Hijaab is part of Islam or if Riba [Usury, Interest] is forbidden and soforth. Many times, such discussions begin by quoting non-Muslim authors,hours are wasted and no one learns any aspect of the Deen.
* The person may not be affected by any kind of admonitionwhatsoever.Some people, for example, have the capacity of listening to many Khutbahs[Islamic lectures], but still it does not bring any change in them. Or whensomeone is given repeated advices and warnings from those who areknowledgeable in Deen, it doesn't affect them. They arrogantly insist uponsticking with the falsehood.

Imam Hasan al-Basree [rahimahullah] once said to a man,
* Cure your heart for Allah desires that His slaves should purify their hearts.
* You should know that you never truly love Allah until you love obeying Him.
(Jaami' al-'Uloom v.1 by Ibn Rajab)

The heart cannot become purified until a person knows Allah, loves Him,fears Him, has hope in Him and trusts Him. This is the true realization ofthe statement Laa ilaaha ill-Allah.The heart will never be pure until it loves, deifies [worships, exalts],fears, and submits to no one except Allah, eventually ending up of the limbsby following and making the actions pure.

(Ref. Taken from Imam Ibn al-Qayyim's Ighaathah al-Luhfaan min Masayidal-Shaytaan, Volume 1, page 70-73)