Don't let your heart be like a sponge... Ibn Taymiyyah (d. 728) once advised his student Ibn al-Qayyim (d. 751) as follows: “Do not let your hea

Don't let your heart be like a sponge... Ibn Taymiyyah (d. 728) once advised his student Ibn al-Qayyim (d. 751) as follows: “Do not let your hea