This is rather good. I never did mind-enhancers, but I used to occasionally slip into some ‘ego-less’ state. In this state, shapes, sounds, things just happen without any obvious structure. It stopped happening when something I saw linked with something I heard, such as seeing someone walking with the sound of their steps. The sound would be in advance of the vision until I noticed this, where it would sync up. Or there was some 3D object ‘over there’ which restarted my sense of perspective, and reminded me that this stuff was all viewed by someone from some viewpoint. The film tracks the disconnection of the senses, and their reconnection as I experienced it rather well. I don’t get the full-strength experience these days. but there was (I got) a hint of it when I watched the film.