One of my favorite pieces from the Gary Hill documentary was Meditation, the one in which there is narration, a stereo, a hand, and sand. The materials he used in the video were quite simple. An aerial view is used throughout the entire video and their was probably no editing done to the video portion of the piece. The language Hill uses is also very simple. I liked how the piece had different stages of comprehension, in the beginning and then again at the end. The narration seemed to correlate with the actions of the hands. As more sand was added, the more the sound was altered and was taken to a new "place." As well as the sound, the sand itself physically moved by the action of the voice, and there was an interaction between how one action changed the other action. By the end, the voice is seems like it is buried because of the amount of sand that has been added to the speaker.
I found most of Gary Hill's pieces to be engaging, all having to do with his combination of language and image - however the one piece most people probably won't like (Incidence of Catastrophe) - is definitely the least accessible piece. Because the language is nonsensical is it harder to draw meaning, as well as the very strange (in my opinion) images in the video.