i know what you mean, you close your eyes and its like you can see the sound or some shit. Also, when i'm pretty high and listening to music, i can almost feel the sound waves enter my body and vibrate from my head to my feet to the beat of the music. Its such a good feeling, anyone else get this? I've ask some friends and they said no, but one person said they were auditory hallucinations (?), i'm not sure, but they're fuckin awesome.