Hi Veronika:
The answer to your question is a bit difficult. What I did was actually a skill I came into this life with, so I'd classify it as a form of "intuitive" healing closely related to channeling. At least, that's what two third degree Reiki practioners and I postulated (when we all converged in one of those 'non-coincidental conincidences' the universe seems to arrange.) They, of course, thought this "accidental meeting" was my "wake-up" call to get back to work. It probably was, but I no longer have the heart to try. So, I'm just puttering on with my life.
However, I do know that what I did was very different than any technique currently taught. A psychic who once saw me work said she'd never seen anyone enter into the level that I did, nor employ a method that had such unusual visual effects.
Personally, I tried not to deal with visuals; they distracted me. I just tuned into "there" and pulled forth whatever information and assistance I needed and acted accordingly with whatever came to me. There wasn't any hard and fast rules; every case was different.
I suspect this technique isn't new, but rather has been "forgotten" in the course of time (but has remained buried somewhere inside of me). It's there when I choose to tune in and "do".
I know this isn't much help in answering your question, but that's more or less the case.