Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The heart in a dream is the king of the body and its manager. It indicates a man's courage, generosity, and religion. Heart pain is hypocrisy. Whoever sees that he has no heart will be afflicted with severe fear.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The heart indicates what is in a person's inner self of secrets and faith. Eating a heart indicates gaining wealth from an enemy through cunning. The heart coming out of its place indicates righteousness in religion and piety.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The heart is interpreted as religion, the mind, and the secret. Its soundness is the soundness of religion, and its corruption is the corruption of religion. A hard heart indicates distance from God.