Asma:
Hmmm. Not quite sure how to tackle this one. It's not really a question about the natural sciences or even about the natural world. Something like this is better asked in the Spirituality and Religion section as Astrology and Auras are more a pseudoscience or false-science as there is no actual documented data or proof to back this up. Or any peer-reviewed papers in any credible journals.
So this can not be answered with science as Astral Projection is not recognized by any scientific community. Sorry. :<