i have actually astral projected on accident before. alot of times when im sleeping i feel strong vibrations throughout my body and didnt know until recently that it is the beginning faces of leaving your body.
but it was when i was in college, in between classes i would sit in my car and sketch and listen to music. it was a cold day and so i was bundled up in a jacket. i dont remember going to sleep [i believe i actually passed out, because later my head hurt where it had hit the window] but i remember suddenly lifting into the air and looking down on my car. it was incredible.. i could see clouds that i was above and my car getting smaller and smaller until i 'closed my eyes' because im afraid of heights. and then i "zoomed" [for lack of a better word] to somewhere else and was observing two people .. i wont go into the whole trip, but it was like they couldnt see me but i was there, and then it was like when i had saw whatever it was i was suppose to see i was just sent bak to my body, it was like i wasnt really in control. and when i gently 'fell' back together, i woke up immediately like i hadnt even been asleep and 3 hours had gone by.
its a weird experience, and i dont know too much about how to control it..
but hopefully that kinda helps your feelings on the matter.
peace and love