SWIM has also had experiences in his dream where he was tripping.  While in some ways (visuals) they appeared accurate, it was still a dream and somethings were different (especially my state of mind).  Dreams are themselves an altered state of consciousness.  All your experiences in a dream are actively created by your brain,  there is no sensory input. Thus your brian is able to recreate experiences.  I doubt that someone who has never tripped could have a dream of this nature, there is no way.  One needs the experience.    It is defiantly fascinating and SWIM always enjoys such dreams, the visuals can be beautiful.  This phenomenon is very different then actively tripping while you are awake, which is very likely impossible the very idea of flashbacks is sketchy in its self.  These people may have has a mild pre existing psychosis that the drugs induced. ???

The effects can be similar to tripping because they are based on your experience (to an extent) but for SWIM they were not exactly accurate.