I had an experience a little while ago where when I was laying in bed. I was just laying there and I was thinking about Wiccan spells to call upon the higher powers of earth, but I changed the spell to be more personal to me, and what I was offering in return of its presence.
I don't fully remember exactly what I said out loud but I know I said that I would give it my body heat, I also timed it to be a full moon. After saying this about 5 times? I felt something above me. It wasn't pushing down, or penetrating my space, but the amount of energy that was being glared at me from one point was so great that it made its own boundaries. I can't say if it was good or evil, it just felt so overwhelmingly powerful that I could do nothing but lay there and stare.
I think it could tell that I was afraid, or maybe took my fear as respect? Because it left after 20 minutes. Two days later, I was having a waking up dream that there were dead people around me and I said "I collect these souls now" and right after that was said I woke up to that same feeling, right above me. I think I aggravated something, but it does not attack me, it makes its self known. But has not ever since those two nights.