Peter A Levine explained the nature of trauma and offered the best resolution to heal it in his book Waking The Tiger: Healing Trauma. Majority of his approaches are based on how wild animals react or behave to counteract the bad effects of trauma. Healing trauma normally takes a long time. This is the reason why a person needs patience before he could master the art of healing on his own. Re-living the trauma does not actually help in the healing process.
If we could let our body go with the flow of the trauma like the shivering of animals after fighting with other animals or escaping the voracious intent of predators, then we could go away faster and easier from the black holes created by trauma. Humans could fight trauma through crying. In this manner, negative feelings or emotions are not stored inside the system of the affected individual but expressed, thereby releasing the tension.
The book stimulates and urges humans to be stronger in terms of combating trauma, which would surface and resurface unexpectedly throughout their life span. It helps in bringing the psyche, and the whole body of a person back into balance. It also helps in becoming numb or accepting the extreme bad imagery of violence happening in the Earth.
Reference:
Levine, PA. 1997. Waking the Tiger: Healing Trauma. USA: North Atlantic Books.