I guess I would question the purpose of an "unconscious" trance. While material produced in such a state can be interesting, and maybe useful when viewed metaphorically, it can't be relied upon as any sort of objective "truth." Especially memories recovered in this way are notoriously non-reflective of objective reality.

I was under the impression you were hoping for maybe some sort of post-hypnotic suggestion that might lessen your obsessive thoughts, rather than an explanation for them?