Imamsheds the light on the subject in his famous theoogical work "an exposition on Forty Hadith" as following:
As to the moral hazards, it may cause malice towards creatures of God, leading sometimes even to the enmity not only of prophets and awliya’, but also of the Holy Essence of the Necessary Being and the Nourisher.
This shows how dangerous and disgraceful its consequences may be.
I seek refuge in God from the evil of the rebellious self, which, if left reinless for a moment, throws one down rolling in the dust of ignominy or dashes with him towards eternal damnation.
It may also give rise to other vices, like hasad, about whose evils you have read in the exposition of the fifth tradition, and many more besides it.
There is no limit to the behavioral hazards that are products of this vice. Perhaps, it may lead one, God save us, to use abusive language or revile the prophets of God and awliya’.
Or he may desecrate sanctities and utter slanders about venerable persons.
He may murder a pious soul, wreck the lives of innocent creatures, wreck a family, or reveal the secrets of others tearing up the veils that cover them, Imam Khomeini further explained.
There seems to be no limit to such monstrous acts that man may commit at the time of outbreak of this faith-consuming fire that also destroys many homes.
As such, it can be said that this habit is the mother of all spiritual maladies and the key to each and every evil action.
As opposed to this vice is the ability to restrain one’s anger.
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Faith, which is fortune of the soul, is different from knowledge, Imam Khomeini explained