Strange confusion       

I'm a very open-minded person, and I have experienced mild paranormal events before, and this certainly didn't scare me so much as it fascinated me. While in college for engineering, I, like many of my friends and college students all over, experimented with hallucinogens. Not to excess, and never in an unsafe way. I believe that in the end they made me a much better person, and really opened my eyes, so to speak, to myself and the world around me. It's also worth mentioning that I've always had powerful internal vision, i.e. I can easily create images or objects in my mind from scratch, but after my experimentation with mushrooms and lsd, I found that power amplified manyfold. At this point in my life I can create realistic three dimensional images or scenes in my head with just a little concentration, with full control over the images and their transformations. It's actually quite handy in my field, like a 3d modeling software combined with a physics simulator in my head. Anyway, a few months after my most potent trip, I was in class one day, trying to keep myself from dozing off as usual. The professor had the lights off as he was giving a PowerPoint presentation. I felt my phone buzz, and I snapped out of my daze. I held the phone below desk level to look at it, and I can't really describe it, but at that instant I felt my mental sight jump from my own eyes to my professor's. It was like in a movie, where there was this rushing tunnel, it only lasted a fraction of a second, but suddenly I was seeing what my professor saw. I (he) looked at me and saw myself looking down at my phone, with the light from the screen shining up into my face. Then I (he) looked across the class at other students. The detail was perfect, I can still recall that image in my mind like it was actually me looking with my own eyes. As quickly as it happened it stopped, and I looked around and saw that what I saw through his eyes was totally accurate. Down to the position of the students in my class and what they were wearing. It's interesting to note that it was completely in my mind's eye, while I was seeing all this I was also looking at my phone, reading the text. The whole thing lasted not more than 2 seconds, but it has always stayed with me, and although I feel like I'm quite good at imagining things through others' eyes (literally, I find it easy to imagine what others might be seeing and feeling, almost empathically), I've never experienced something so immediate, real, and verifiably accurate, before that or ever again. I also didn't have a particularly strong bond with that professor or anything, I liked him and he liked me but nothing out of the ordinary. Anybody have any thoughts on what that might have been?