i like to get pretty fucked up almost every weekend so i always have closed eye visuals every time i try to get that high, however onetime i boxed my bathroom so 2-3 bowls (im talking BIGGG bowls) of suppper dank our of a lung bong (similar to gravity bong), i basically smoked till i didnt want to anymore, and once i got in the shower i layed down and looked up and i saw clouds above my head. So i closed by eyes and just tripped the fuck out. right when i closed my eyes i somehow got into a roller coaster, and i was just going over the huge dip into the long drop and i seriosuly felt my entire body move as if i was on a roller coaster and i saw the track and all that shit but it only lasted for about 10 seconds, i then opened my eyes, got up and threw up. THe roller coaster ride was one of the funnest things ive ever done however the getting up, head rush, sick feeling and barfing wasnt that great.