Professor Ansarian:
A Sense of failure, suffering and despair gradually take over the human being due to the sins he has committed and then he would be discouraged and would have no zeal to do good deeds. This feeling will exceed to the extent that he ridicule the good deeds; not only doesn,t he say his prayers but also makes fun of those who say prayers, not only doesn,t he observe Islamic covering (Hijab) but humiliate the Hijab and those who observe it. Not only doesn,t he abandon saying lies but also counts honesty as being naïve. In relationship with strangers (non-mahram) and those who are not related to him, he not only disrespect the dignity of modesty but also counts immodesty, humor, intimacy with non-mahram out of the norm as a symbol of progress.
source : erfan.ir