I used to have out of body experiences when I was young, and no they were not drug related. Several years ago I house SAT for a friend of mine for a week. He liked to go to fortune tellers etc. There was some entity in that house that apparently did not like me, lights would go on off by themselves I would hear coughing and other noises that I could not explain. One morning I woke up suddenly and then was pushed by something causing me to almost roll off the bed.
I had an out of body experience just once. I was told, in no uncertain terms, that it was forbidden to me. I have never tried since.