Actually Astral projection is hinted to in the Bible. The silver cord(a silverycord attatching ones physical body to ones astral body) that is so often mentioned by astral travelers is also mentioned by King Solomon in the Old Testament (ECCLESIASTES 12). Also Paul mentions an out of body experience in 2 Corinthians 12:2. He mentions where he acsended into the third heaven and met Christ and was not sure whether he was in body or out of body.Check it out. I think Astral travel and meditation was natural for the Great Sages of the past, from Abraham to Paul.