Some of the acts of the heart are required by the law

Some of the acts of the heart are required by the law; Allaah is like the work of the heart that has settled in him after the evidence and the mental evidence of his entitlement to worship and love, while envy is similar to the work of the heart, but the mind does not support him or call him. We said that the mind can not accept error unless it is overcome by the heart. Even though the heart appears to the absent mind, the mind is not satisfied with the acceptance of error, so its owner works to neutralize it as much as possible, and the effect of this neutralization appears when the sinner is reminded of the facts. He is disturbed and appears to be constricted by the heart. With the mind that rejects the wrong, and in this God says: 

(And if God alone, the hearts of those who do not believe in the Hereafter, and if the mention of those without him if they are happy) (Al-Zumar, 45) 

The believer will explain his chest when reminding him God Almighty, (2) The heart of the believer is glorified and explains when he hears the truths because his heart is compatible with the logic of truth (that is, the believer). The mind), while the infidel lacks the element of harmony between his heart and mind so you find him disgusted whenever the facts are remembered. 

The difference between the believer and the unbeliever is that the believer has his heart following his mind, while the infidel makes his mind follow his heart. And depend on it is the acceptance of the heart; because it is the source of control in the human, it is the Almighty God's heart, his servant acceptable, and his slave without the decision of his heart, his worship is not acceptable, and therefore we said that relying on the decision of the heart and not the decision of reason. Because the believer is distinguished from the hypocrite, the hypocrites may perform the good deeds as the believer but they do not accept him, because those deeds do not come out of his heart. 

Allah says in the hypocrites: (And if those who believe believe they said safe and if they go to their demons, they said, we are with you but we mock) (Baqarah, 14) 
{ (Al-Imran, 119) 

{And if you see them you like their bodies and if they say you hear them say that they are assigned wood and they count every shout they have The enemy of God, curse them beware Aavkon} (hypocrites 4).