Astral Projection: For those who've done it.

1. a less dense body, the spirit body which is just like this physical body but different, "gets freed", like you are aware of this body. 2. there's different options: meditate, vegetarianism, think about it a lot, try it at night, talk to your guides it may sound funny but it can help you get the feel of what's going on 3. i've had an obe that hurt. actually a couple. one i was in a carriage. another flying very fast through space. for some reason my spirit body kind of hurt, which is really weird, and I hadn't heard of that happening before. 4. just wake yourself up. you can do this by rolling back and forth in your bed. i am conscious of my physical body when I want to be and can wake myself up. you can yell wake me up! and maybe a helper will help you to wake up. but usually, i think it's really easy. you return to your body this way. sometimes the adventures will just end. 5. i find that it is usually pretty limiting for me. for some reason i had this idea that i could meet God during an OBE. He just doesn't magically appear necessarily if you yell for him during this. which i figured out. 6. you may become alienated from family and friends if they are not into this sort of thing. it can have consequences on your future because of this too. 7. i don't know

I haven't done this and I don't think I can ever. Although, I've read something about it in a book by Paulo Coelho called Veronika Decides to Die. If you haven't read it before, then try reading. It may help you find what you're looking for. But I guess Astral Travel needs a lot of concentration and it's existence is still a doubt for me. Goodluck!