Anger must be conquer with mercy.  Every one who is angry with his brother is in danger of condemnation.  Anger is a mean and despicable sentiment. 
All physical poisons greatly retard the efforts of the Adjuster to exalt the material mind, while the mental poisons of fear, anger, envy, jealousy, suspicion, and intolerance likewise tremendously interfere with the spiritual progress of the evolving soul.  Rage can induce mystic state, but mystical experiences should not be confused with direct communion with one’s Thought Adjuster. 
Anger is a material manifestation which represents, in a general way, the measure of the failure of the spiritual nature to gain control of the combined intellectual and physical natures.  Jesus’ disciples learned that a soft answer turns away wrath.  Spirit of Truth endowed mortal man with power to challenge the evils of hate and anger by the fearless acts of love and forbearance.  Anger is like a stone hurled into a hornet’s nest.  Fear and anger weaken character and destroy happiness. This momentous sermon started out upon the note of happiness. 
Erroneous teaching about Jesus’ life says that he died to satisfy the demands of “divine wrath,” but the truth is that bestowal Sons do this “to drink the cup” of all that means having a personal experience as it is lived by their creatures.  The eternal God is incapable of wrath and anger.  Jesus refused to accept the teaching in the wrath of God or the anger of the Almighty.  Jesus had a talk with Jacob of Crete regarding the idea of wrath of God.