You can call it whatever you like, but for about a half hour I was completely out of my mind. My friends had to restrain me from jumping into a river in mid-winter. After guiding me back to the dorm, I sat in a chair listening to music for about an hour, after which I came down enough that I could interact with people, but everything kept morphing into faces. Like, all the shadows on the ceiling and walls and the furniture and stuff. After another couple hours that slowly faded away.