The real prisoner is someone whose heart is imprisoned from his Lord; the true captive is someone captured by his passions.
—Ibn Taymiyyah [d. 728AH]
(Al-hadiyyah fi Mawaith Al-Imam Ibn Taymiyyah, pg. 21)
(Read on pg 58, Ibn Qayyim al-Jawziyya, The Invocation of God. The Islamic Texts Society. UK:2000 .)