Hi JJa You know when you get into SP try to relax at that point .... and let it happen with the onset of SP thats the point of experiencing as you say "the zooming out of your body!"

SP is the point of where your mind has tricked your body that it is asleep and you feel like a lead blanket has been put over you, beyond that point is where you are at the edge of entering in a dream state this differs for everyone.

you can experience HI or HJ noises and it can seem really weired I get what seem like jolts of electric thats an indication that my body's in SP.

Fact is we are all different and experience different things best thing to do, and what i have done is to read, study all about it, this will then help you to know whats going on during the different stages

you will certainly know it when entering a dream state and then you will know what to expect as you learn.

GOOD LUCK