There is a tendency to think of the mental as separable from the physical. The physical includes everything we know of, except the things that constitute our subjective lives. Yet, unless we give up on making sense althgether, there can only be one sensible all-encompassing reality. If our subjective experiences are not fictions or lies, they constitute part of this reality. They therefore must form part of our increasingly sophisticated story of how that reality is constituted. The prospect of having a theory of what is that is expressive enough to encompass both quarks and ideas has appeared so daunting as to be unobtainable. But this is very pessimistic.