I think you have to control the materials to an extent, but it's important to let the materials have a kind of power for themselves; like the natural power of gravity, if you are painting on a wall, it makes the paint trickle and it drips; there is no reason to fight that.
“Losing both parents at a young age gave me a sense that you can't really control life - so you'd better live it while it's here. I stopped believing in a storybook existence a long time ago. All you can do is push in a direction and see what comes of it.”