Our friend KC shared this dream from 1999:

I was with Craig C. and a few other people on an exploratory voyage.  It seemed like we were on a spaceship, but there wasn't much sense of it being that physical.  We were exploring different levels of reality, and discovered that to go from one level to the next higher, we had to place our attention on the sun of the nearest solar system, and once we focused on it, we would awaken in the next higher reality.  But each level was different enough that the technique had to be altered for each level.