No... not an astral traveller... typically they, you know, are astral
. No, this is something negative. I feel it... and I don't feel this certain often. Then again it might be some bad chinese I ate earlier. It seems to me that it might just want to feed off of fear. But as Seo said, after he tells it to go away, it did so.
One time I actually heard it respond to a command of mine telling it to leave me alone.
And thus that kind of makes me feel it isn't a demon. But as I said before, I R TEH N00BZORZ, and therefore my advice should be taken much more lightly than that of a more advanced person.
By the way,
The religious items arent a bad idea. Just keep in mind, faith is an essential for the actual workings of the items as a safety. Just a thought.