I feel that I'm in a very interesting position, where I'm standing back to look at this change, at this moment in history of human beings. If the end of the civilization comes before the end of my life, that's lucky! I want to witness how this big story of humans ends.

I'm inviting the spirits into my photography. It's an act of God.

I came to California in 1970 and so many people were asking if I was a Buddhist or knew Zen theory, asking if I was enlightened already or not. So I said, "Yes, I am enlightened," and then I studied quickly to catch up.

The Buddhist concept is that it takes 48 days to get near this state [of death]. So it's a slow process, moving into, not a permanent death, but the world of the dead.

Humans have changed the landscape so much, but images of the sea could be shared with primordial people. I just project my imagination on to the viewer, even the first human being. I think first and then imagine some scenes. Then I go out and look for them. Or I re-create these images with my camera. I love photography because photography is the most believable medium. Painting can lie, but photography never lies: that is what people used to believe.

It's pre-photography, a fossilization of time, Americans have done the Zen garden to death. I wanted to do something different.

I didn't want to be criticized for taking low-quality photographs, so I tried to reach the best, highest quality of photography and then to combine this with a conceptual art practice. But thinking back, that was the wrong decision [laughs]. Developing a low-quality aesthetic is a sign of serious fine art-I still see this.