I'm a very experienced salvia divinorum user. I've reached a point of open eyed visuals many times and this isy strongest experience.
I was in a gold tunnel. I took 1 hit of 20x salvia from a makeshift pipe. My friend left the tunnel. I proceeded to exhale...
I started to feel the need to turn my head right. Then poof, I was gone. To the best of my knowledge I had never existed. It seemed like I was living in a dArk universe for forever, until I started to appear in a white room. Half of my vision was taken up from a waterwheel looking object that had abstract clown drawings on it was staring me in the face. I then became aware of my hands on my knees, how they were falling off, whenever the wheel turned my legs would slip, then get pulled back up. It felt as if my job in the universe was to keep my hands slipping.
I really cannot describe the feeling of being alone to everyone. You are the only one. I didn't know I was myself. I just knew to not let my hands slip. Eventually reality started to flash back, however I still was not under control, I was laughing uncontrollably, then crying and yelling. I didn't want to live my life this way. I came back finally.
Seriously. Wouldn't call it a bad trip. Wouldnt call it a good trip either.