Professor Hussein Ansarian pointed out in one of his speeches that the moral vices act like an obstacle and don't let mankind enjoy the Divine grace. He added: The inward purity has been discussed throughout the Holy book of Almighty God, of course, the impurity has also been mentioned in various verses of the Holy Quran. If mankind is not cautious and vigilant and if they don't keep in touch with prophethood, and according to different narrations in the first Volume of Al-Kafi, if mankind doesn’t get in touch with monotheism, prophethood and the guardianship of Ahlulbayt (AS), they will not be safe from impurities as it has been repeatedly proved throughout history.
source : erfan.ir