Traumatic events challenge an individual's view of the world as a just, safe and predictable place. Traumas that are caused by human behavior. . . commonly have more psychological impact than those caused by nature.
When experiences or emotions become too overwhlming, the mind clevely encapsulates the material and stores it for safe-keeping. Many people respond this way in the face of trauma, but the additional step that occurs in this process, in the case of DID, is the formation of distinct ego states that carry the experience.
...a freeze response (dissociation, collapse, numbing, paralysis, deadness) during the incident that threatened your life or limb. Sometimes it's difficult for people to understand that this is really survival response...