It's frightening and unnerving to watch a stone melt.

Generally in New York, people just walk over you with no problem about that. Other countries, people want to resuscitate you, like, after a bit.

Nature, for me is raw and dangerous and difficult and beautiful and unnerving.

The hardened mass of liquid stones had much stronger qualities than those which had simply torn. The skin remained a recognisable part of the molten stone.

I'm not a performer, in that I don't like the public, but I work in that respect.

I have worked with this red all over the world - in Japan, California, France, Britain, Australia - a vein running round the earth. It has taught me about the flow, energy and life that connects one place with another.

Photography is a way of putting distance between myself and the work which sometimes helps me to see more clearly what it is that I have made.