Body of Light?

[shokan]

I've been reading about this technique and bought a book called Between the Gates by Mark Stavish.

All sources, including the book, have in common a description of transference, or duplication of, consciousness to a separate "body of light". But a little searching for actual experiences in a forum or blog /diary type thing hasn't turned up anything really experiential yet.

One webring page ends a Body of Light how-to with the enigmatic statement 'The Body of Light technique brings you closer to something even more exciting than stepping out in your etheric body. It introduces you to astral plane projection.' I assume this page author is saying that imagining yourself walking around in detail is like practice for more well-known OBE techniques, but I don't know. There's no further explanation.

What is the goal of full-fledged Body of Light technique, what actually happens, what are its uses? And, is there anywhere here or elsewhere that describes experiences of those who have mastered it ... and what were they able to do with a Body of Light?

I also want to know if it's a difficult thing to achieve and how is it different or the same as OBE?