What are the diseases of the hearts mentioned in the Qur'an and Sunnah, with evidence for each disease, a simple explanation for it, and a detailed explanation of the diseases of desires and doubts with their evidence?

To learn about the diseases of the hearts, their causes, and their cures, it is recommended to refer to "Rub' al-Muhlikat" (The Quarter of the Destructive Evils) from Ghazali's Ihya' 'Ulum al-Din or its abridgements, as well as Ibn Taymiyyah's Amrad al-Qulub wa Shifa'uha (Diseases of the Hearts and Their Healing), and Ibn al-Qayyim's books such as Al-Da' wal-Dawa' (The Disease and the Cure) and Ighathat al-Lahfan (Succoring the Distressed), in addition to Mawsu'at Nadrat al-Na'im (The Encyclopedia of the Freshness of Delight) - the section on blameworthy attributes. These books are available electronically.