I get into these trance like states when my Psychosis decides to rear its ugly head, it can come on due to stress, anger or the depressive side of Bipolar in my case, sometimes i cant distinguish between the mania & the psychosis coz both of them, to me come on in very similar ways...I get a feeling of my skin crawling, i start feeling euphoric & before i even know whats going on the out of body experience within the trance like state starts to happen! I can see exactly what i'm doing but can not seem to get control of it or stop it...it can get very very scary...I think my longest was 4 hours which resulted in me coming out of it angry, punching my wall & then realizing my arm was all cut up & bleeding, sending me into complete panic mode, that was my first experience with trances...i absolutely dread their existence