Why does anger exist?
I suppose you are asking where anger comes from. Anger is a violent reaction of the vital to some shock that is unpleasant to it; and when it involves words or thoughts, the mind responds to the influence of the vital and also reacts violently. Any expression of anger is the sign of a lack of self-control.
The Mother – Some Answers from the Mother: CWM,Vol. 16, pp. 334-35
Anger, moreover, like all forms of violence, is always a sign of weakness, impotence and incapacity. Here the deception comes from the approval one gives it or the flattering adjective one covers it with; for rage can be no more than blind, ignorant and asuric—opposed to the light.
The Mother – Agenda: Vol. 2, p. 30