People in prison commonly live with a sense of personal failure. Most prisons and jails foster, even amplify, this sense of failure by dehumanizing practices like constant herding and extreme over-crowding. Prisoners’ efforts to cope with these humiliations result in behaviors similar to those identified with veterans as PTSD (Post-traumatic stress disorder).
The violence in a war zone, like the threat of violence in a maximum-security prison, creates a chronic debilitating state of fight or flight for the individual. To simply cope, the prisoner develops the ability to avoid and numb feelings and represses intrusive memories. This leaves many of them with enormous anxiety and a deep sense of personal shame.
When their basic sense of personal worth is stifled in this way, the sufferers are driven to further extremes of self-loathing. As penal institutions perpetuate a culture of dehumanization, the symptoms of PTSD proliferate. Though they can be visible (angry outbursts, aggressive behavior), they also fester in secret (night terrors), buried in the deep crevices of the psyche.
As one prisoner describes it, “The external reality and climate of violence that dominates one’s existence and sense of self in these high-security prison environments cuts a prisoner off from any sense of personal interiority.” 
Experts tell us that the deepest wound of PTSD is a “moral injury,” that is a wound to the soul, caused by participation in events that violate one’s most deeply held sense of right and wrong. The perpetrator or victim realizes how wrong it was. The irony, of course, is that this “disorder” is actually an appropriately normal response to an overwhelmingly abnormal situation
.. Centering Prayer bypasses the mind with its horrific memories and trauma and invites practitioners to “detach” from their narratives and “let go” into the spaciousness of Silence. There they can encounter God or Divine Reality through the deep longings of their hearts. The silence pulsates with a compassion and warmth that other remedies cannot replicate. The deep sense of moral injury and shame no longer needs to be repressed. They can begin to forgive themselves and feel like they just might be lovable.