The researcher, exegete and scholar of the holy Quran pointed out that the apparent and inward sins are the main reason of stagnation. He also added: a great deal of perfections and values like piety, trust, truthfulness, loyalty, kindness, belief, moral virtues, and helping the others have been provided by Allah Almighty, but there are a group of people who don’t even take a simple step toward these values, they are stagnating and have no tendency to move toward the good things.
According to public relations and international affairs of the scientific and cultural institution of DarolErfan, Professor Hussein Ansarian said in one of his lectures in the Grand of Mosque of Illam: According to the verses of the Qur'an and traditions, what stops man and does not allow him to move towards the values and perfections that God has placed for humanity with mercy and grace, are the inward and apparent sin they commit. Most inward sins concern the heart, these sins threaten the life the heart and finally kill it., according to the assessment of the sixth Imam (AS) of the Shiites, When the heart dies all other body organs die accordingly from moving toward worshiping the Almighty Allah and serving the people.
source : erfan.ir