I was lying there listening to Phoenelai's lucid mp3 trying to snooze, but it kept my mind awake, so i thought meh lets WILD

And i chilled out, felt medium vibrations, and my body felt real heavy etc. when suddenly, i had this image of two tall buildings in my vision, and it became 3d, like one of those pictures you view crosseyed. It suprised me and i got a lil excited, and it disappeared. Was this just a hallucination or is this a dream scene forming?