Imam Khomeiniexplains the matter through his famous work "an exposition on Forty Hadith" as following:
One of the moral maladies, which may destroy one, cause torment of the grave, and plague man in this world, is the maltreatment of the people of his household, his neighbors, his colleagues and others around him.
It is the product of passion and sensuality.
If the mujahid is determined on correcting himself, he can counter those impulses of indignation, resentment and vituperation with gentleness and kindness, remembering the Hereafter and the chastisements therein.
He should curse the Devil in his heart and take refuge in God.
I give you word that if you behave persistently like this, after some time you will realize that your nature is totally transformed and good habits have taken the place of the bad ones.
But if you behave according to the propensities of your nature, it is possible that they consume you in this world itself.
I seek refuge in God from the anger, which when present in an individual destroys him in both the worlds, Imam further explained.
At the same time it kills his spirit also, because possibly one may use some indecent words against Divine principles in a fit of anger, as so many times we hear people uttering words of heresy and being guilty of apostasy thus.
Philosophers say that the chances of being saved in a ship without a captain from the stormy waves of ocean are brighter than those of a man being saved in an outburst of wild passion.
God forbid, that we should ever belong to that category of people who become aggressive during academic discussions, as some of our students suffer from this intemperance.
You have to resist against this bad tendency.
Act against it, especially on the occasions of formal functions, which are attended by a great number of scholars and common men.
Read more:
God has made your heart His own habitation, Imam Khomeini explained