Hi everyone, I'll add what I know regarding how to have an OOBE.
I can only write about how I do things and the experiences that I have had. I am, by no means, an expert but I have experienced this phenomena hundreds of times during my 45 years.
Attention before you start :
Please know that not every experience is a wonderful or even positive experience and that one can find themselves in situations which are confusing and scary.
I also say a prayer before I start, asking that I stay protected, that I come into contact only with positive energies and that the experience I have be for the heights good of every energy concerned.
It would also good to do some reading on people's experiences & especially those on how to get back into the body. If i get stuck I find the easiest way is to shake my head vigorously to the side & snap myself out of it. This wakes me up.
From the time I was very young about 4 or 5 I have been having OOBE's.
At that time it was just something that happened to me. Every night I would go to bed, (I always looked forward to bedtime because of this) I would get comfortable, close my eyes and I would just concentrate in my mind on where my head was laying on the pillow and then my mind (and my body it seemed) would slowly start to spin.
The feeling to describe it best, is how you feel when you as a child would spin yourself around to make yourself dizzy. As I started to spin I would lean into the feeling and as this is happening I would be able to feel every cell of my body vibrating with energy.
With this feeling I would drift away, up up up, into the sky and go flying. It's like I could see through the ceiling of my room straight through to the sky & I would decide 'I'm going up there' & off I'd go. It alway feels wonderful, flying through the night sky, over the land, dipping down here going over buildings, over hills, rivers, whatever, wherever you like.
As I got older I didn't do it as much, I don't know why, and I wasn't as in control of it as I was as a child. I don't really know the reason for this but I suspect that life gets more 'real' the older you are & no one else talks about doing it. But it still happened to me a lot, just not as regularly and not at my beckoning.
About 15 years ago I started to look more closely into my spirituality, into meditation & to gain more knowledge & control over these types of experiences. So these days the way I experience OOBEs is a bit different, and though i still have many that are unbidden most of the time it happens because i set out to make it happen. Sometimes though no matter how I try I can't make it happen & I just drop away to sleep. It's not an exact science, far from it.
The process now is different from how it was as a child. I can't induce that spinning sensation as easily but I can make it happen a different way. One of the main tools I use is meditation, it seams the more I meditate the more easily in can induce an OOBE. If I mediate before I go to bed then it is much easier but it also opens other experiences and not all of these are let's say 'enjoyable. Often this realm can be a double edged sword as many people here seem to attest to.
So after a relaxing shower, I would meditate for about 20 min 1/2hour. Then get comfy, closing my eyes, I lie on my back with my hands on my chest (like Rudy Walsh, I also find that putting my hands together helps to induce the process.) I put my hands on my chest, one over the other.
I then concentrate on my body, the aliveness of it. I concentrate on the buzz, or energy of my body, my being, like each cell is vibrating. Run your consciousness over yourself from head to toe & once you have the feel of it keep the feeling of your body as one unit & concentrate on that vibration. I start to feel like that vibration has it's own shape extending out past my body
At this point I start to feel either my lips or hands slowly start to hover slightly above where they are on my body. It's like there is a spirit duplicate of you and it's floating in roughly the same space as your physical body. Now I start to feel like my physical body is paralyzed but that I can move my arms (those of my spirit body).
If you are freaked out by what is happening you might want to practice by just getting to this point & then opening your eyes, vigorously shaking your head or sitting up. The more you do it the more familiar & comfortable you will get.
For a long time I would get to this point & get stuck. I couldn't move but I couldn't separate out of my body either. Stuck in limbo. The instinct you have is to get up or float up like you would in the physical state. But I eventually worked out if I do the opposite then I can actually rise up (fly off) , fall out (to the side) or get up out of my body.
By 'the opposite' I mean leaning back. Imagine you are standing on the edge of a cliff with your back turned out towards the fall and letting yourself fall backwards off the cliff. Just trust & let yourself fall. As I do this I feel my spirit body rise up & I then have full control over moving away from my body.
Once out, it is my experience that unless you are pulled away by other forces you can pretty much do whatever, go wherever your mind takes you. Through the wall into the next room, through the ceiling & up into the sky. Just think & go. I find the falling back useful especially when taking off to fly.
Good luck everyone, I hope the read was worth it & I hope there was a little something that someone might find useful.