Chatting with a friend I realized there are many metaphors that can be used to explain phenomenon found in DID and other dissociative disorders.
Feel free to add your own.
Persecutor alter: auto-immune disease. (Since persecutors are maladapted protectors who attack everything in sight, including the system)
Dissociating a traumatic event: getting a vaccine shot in order to recognize future instances of the traumatic events.
Traumatic flashback: allergic reaction.
Dissociated mind: the mind is a puzzle box.
Integrated mind: the mind is a puzzle that is completely finished and glued in place.
Dissociative part/ fragment: puzzle piece.
Alter: an enveloppe containing some specific puzzle pieces, with specific decorations and informations on it. They can look alike or appear completely alien from each-other.
Integration therapy: sorting out the puzzle pieces, trying to make them fit together.
Fusion of alters: Power Rangers piloting the Megazork together.
Dissociative amnesia: this software cannot open this filetype.
Trauma therapy: allergy disensitization.
Getting oriented in the here and now: getting a software update.