in regards to everyone asking about SP:

as far as i have learned from this forum everyone is different and every attempt is different.
sometimes youd feel SP, sometimes you wouldnt. but if you are building a scene, you would probably not be concentrating on how youre real body feels

DreamChaser:
visualising is not about looking at the 'blackness'. its about trying to make a picture in your mind

if you actually see something in that blackness; towards SP or whatever; its most likely H.I