The book is often cited as one of the first comprehensive manuals to systematically combine (outward law) with Haqiqa (spiritual reality). Before Al-Makki, many texts focused almost exclusively on the ecstatic utterances of the mystics or strict legal rulings. Qut al-Qulub argued that one could not exist without the other.

Al-Makki argues that just as the stomach needs bread, the heart needs Ma’rifah (gnosis of God). He states that many worshippers perform acts of obedience but remain spiritually empty because they do not feed their hearts with the remembrance of Allah.

Written by Abu Talib al-Makki (d. 386 AH / 996 CE), Qut al-Qulub fi mu’amalat al-mahbub ("The Nourishment of Hearts in Dealing with the Beloved") was one of the first major attempts to systematically document Sufi teachings alongside mainstream Islamic law (Sharia). Key historical points include: