According to Imam, the pride prevents men from acquiring inward and outward merits and from enjoying the blessings of this world and the Hereafter.
Whereas there are many vices inherent in pride itself, it generates many other vices as well.
It causes hatred and rancor in human hearts, disgraces man in the eyes of his fellow human beings, and brings about humiliation for him. It forces other people to retaliate against him and despise him and insult him.
In al-Kafi, Imam al-Sadiq (PBUH) is reported to have said, “There is no person who does not have a harness on his head, and an angel who attends to it.
Whenever he is proud, the angel says, ‘Be humble, lest God should disgrace you’.
Thus, he is the greatest of human beings in his own eyes, whereas in other people’s eyes he is the smallest of creatures. When he is humble and modest, God removes the harness from his head and the angel says to him, ‘Elevate yourself, as God Almighty is elevating you’.
Thus, he is the smallest of persons in his own eyes, while the most elevated and exalted in the eyes of others.’