The Book of Miracles of the Heart A human being will not be able to know his God (makrifatullah) if he does not know himself, and he will not be able to know himself if he does not know his heart. Unfortunately, most people are unable to know their hearts and themselves. There is a thick hijab that covers the heart, so that it is prevented from musyahadah (witnessing), muraqabah (approaching), and getting to know His attributes. And unraveling the magic of the qualities and behavior of the heart, which pivots to the meaning of four core words: al-qalb (heart), ar-Ruh (soul), an-nafs (lust), and al-aql (mind). According to him, knowing the heart and its characteristics is the basis of religion and a guide for the salikin (those who walk towards Allah). By knowing the characteristics of the heart and its behavior, it will be easier for us to know our heart.Knowing the heart also means knowing the army that guards the heart from enemy attacks, namely Satan. The heart is like a fortress, and satan is an enemy who continues to attack and aims to control the fortress. In addition to preparing a strong army, both physically and spiritually, every believer must also guard the doors of his stronghold (heart), even all the gaps and holes that exist, so that the army of Satan does not enter them. For that, he must first recognize the location of the forts doors.