Richard Serra, Hand Catching Lead (1968)

"If I define a work and sum it up within the boundary of a definition, given
my intentions, that seems to be a limitation on me and an imposition on other
people of how to think about the work. Finally, it has nothing to do with my
activity or art. I think the significance of the work is in its effort, not in
its intentions. And that effort is a state of mind, an activity, an interaction
with the world... The focus of art for me is the experience of living through
the pieces, and that experience may have very little to do with the physical
facts."