One of his clients describes him as the sandstone equivalent of a cocaine addict and watching the now sixty-five year old Ra Paulette excavate and decorate his caves entirely from scratch, that seems quite an apt description. Using a startling lack of technology, he sets about creating intricately designed structures that are like sand castles, only in reverse. These go downwards. It’s fair to say that this man is self-motivated and so some of his commissioners have been less than impressed with his more individualistic approach to his work (on their land, and/or with their cash), but he…