I did this once off some beautiful lsd, as soon as i started tripping, i turned off the lights in my room and just laid still in my bed, lights off, headphones on with some wonderful calming jazz music. What ended up happening is that i noticed that if i tried to think too hard on any one thing my senses would fire so rapidly that i would get uncomfortable, an overwhelming sensation of energy and thoughts. So i ended up rejecting any predetermined thought whatsoever, lying perfectly still, not even allowing myself to think of moving and i just focused on "being". I found that when i did this i literally felt more peace than ever in my entire life, as well as the most amazing body high; like my body was just glowing with all this excess warmth and energy that i normally would be putting toward thoughts and other conscious activities. So i just laid there like a buddha, as my cell would ring, thoughts would slowly emerge into my conscious such as the feeling of having to drink something, or move or change the song, but slowly rejecting these conscious thoughts became almost involuntary. I felt as if i was coexisting with a higher power that i could never truly fathom, but instead of thinking about it, i just was. The longer i remained in this beautiful trance, my conscious thoughts vanished and i literally would just get flashes of amazing concepts, as well as visualizations that just subconsciously emerged as if i was downloading information. It was after this trip i had a better understanding of when Timothy Leary said when he visualized the concept of DNA during a lsd trip. I tuned out my thoughts and tuned into some other realm of knowledge that was not neccesarily my own mind; like i tuned into the frequency of galactic intelligence that is all-knowing. As i try to put these feeling into words and concepts it just seems so silly. The experience that i'm trying to express gets heavily diluted by language, but hey maybe if i put it out here, some psychonaut can gain something from it...