Thank you CFT for your caution note, so you think this was to possess me??
I don't know, it could be a self aspect, however, I think it's a good 'mental habit' to not allow anyone to, just in case. It keeps your mental barriers up.

As to your possessing dream, it could have been a result of what I said, but it never hurts to be cautious, without being too suspicious.
Aunt Clair uses a phrase to describe what I'm talking about- "Open in Protection". Always receptive to good, never allowing intrusion. So it's the advice that I consider the best- a balanced approach.

ps. I always find it helpful to understand that I am always safe and protected, and no manner of appearance of nonphysical entities can hurt, because of this, and so far, so good.