This type of therapy for me, is like neuroplasticity, NLP and shamanism wrapped together. I use it all the time - on myself and am actually teaching my therapist how I do it. I can convince my brain that I got out of a dreadful situation in an empowered way (neuroplasticity). The challenge I face at times when setting the stage for this when I am dealing with something, is knowing what an empowered outcome actually IS because I was so convinced throughout the event that there was and never would be any way out.
A big part of this technique is being able to visualize. To feel the empowerment all through my cells when I conjure up my newfound 'better scenario'. And yes, it is never someone else who rescues me. That would lead to codependency. No interest in that at all. It must be me that takes the reins in releasing myself from the event.
And insofar as DID goes? People use this type of thing all the time. You don't need to be DID. There doesn't need to be pathological behaviour. This tool is used by visionaries, people who run companies use this strategy to project future growth. This is simply a strategy to rewire the circuits of the brain to get out of a helpless, hopeless 'loop' that doesn't serve one well. Good for your therapist for suggesting this. s For myself, it has worked like a charm. It has gotten me 'way weller' and I have to admit I use this strategy every single day to help me blast through the fallout of the victimization that has been gifted to me in times past.