Re: self hypnosis, past life regressions
I find it interesting, Terro, that you assume being wary of hypnosis means being afraid of what will pop out of the subconscious.
A hypnotic state is a relaxed, suggestible altered state of consciousness. (I can pull out my textbook for my Psychology of Consciousness class and give you more technical definitions and info if you want, but right now I'm lazy and am just paraphrasing from memory.) Yes, in such a state, subconscious things can rise more easily to the surface... but external things can also be implanted, and you have a harder time differentiating between fantasy and reality, memory and fabrication, etc.
So it'd be very possible to go through a visualization sequence in a hypnotic state, pull something archetypal or fabricated out of your subconscious, and experience it as reality, and later remember it as a very real-feeling memory that was perhaps, in fact, constructed/false. (Does anyone recall the false memory syndrome issue during the "repressed memories of ritual abuse" flare-up in... I think the '90's, maybe the '80's?)
Hypnosis has its uses, to be sure. But it also has its pitfalls and risks, and I think it's important to know and note those. Any memories retrieved under hypnosis, this-life or past-life, should be looked at with great caution.