Section
The Causes of an Open Heart and Their Perfect Realization in the Prophet (may Allah bless him and grant him peace) —
The greatest cause of an open heart is belief in Allah’s oneness. A person’s heart opens in proportion to the perfection, strength, and growth of that belief. Allah Most High says:
“Is one whose heart Allah has opened to Islam, so that he has light from his Lord?” [al-Zumar: 22]
And He says:
“Whomever Allah wills to guide, He opens his heart to Islam; and whomever He wills to lead astray, He makes his heart tight and constricted, as though he were climbing into the sky.” [al-Anʿām: 125]
Guidance and belief in Allah’s oneness are thus among the greatest causes of an open heart, while associating partners with Allah and going astray are among the greatest causes of a tight and constricted heart.
Another cause is the light Allah casts into His servant’s heart—the light of faith—which opens and expands the heart and fills it with joy. When this light is absent from the heart (1), it becomes tight and constricted, confined in the narrowest and harshest of prisons.
Al-Tirmidhī narrated in his Jāmiʿ (hadith collection) (2) that the Prophet (may Allah bless him and grant him peace) said: “When light enters the heart, it expands and opens.” They asked, “What is the sign of that, O Messenger of Allah?” He replied: “Turning toward the abode of eternity, turning away from the abode of delusion, and preparing for death before it comes.”